1. From the results of part A(Table 1), how m=would you relate the acceleration of the cart to the total hanging weight?

* The relationship between the acceleration to net force is that, as the acceleration increases, the force also increases, and vice versa. If you graph this the curve will be inverse logarithmic equation. It has no intercepts because there is no trail conducted that includes no mass (weight) at all, regardless if it is the mass from the hanging object. Hence, it is apparent that acceleration is directly proportional to the net force if the mass of the body is constant

2. From the results of part B (Table 2), How would you relate the acceleration of the cart to its total mass?

* As you can see on the Preliminary Data sheet, in acceleration vs mass, it is shown that as the mass increases, the acceleration decreases. Conversely, as the acceleration increases, the mass decreases. This follow that when the cars is loaded (increase in mass, a resisting force), the acceleration decreases. Thus it can be inferred that acceleration is inversely proportional to mass when the net force of the body is kept constant

3. List down the possible sources of error in this experiment.

a. Dynamics track angle and condition
b. Accuracy in distance of photogates
c. Initial velocity at the time it passed the photogate 1 d. Smart timer error and misreading
e. Human factors

1. Are the objectives of the experiment met? Explain. A body of mass 'm' subject to a net force 'F' undergoes an acceleration 'a' that has the same direction as the force and a magnitude that is directly proportional to the force and inversely proportional to the mass, F = ma. Alternatively, the total force applied on a body is equal to the time derivative of linear momentum of the body. We were able to meet the objective of the experiment which is to verify the direct proportionality of acceleration and the net force of the mass...

...The Effects of Force and Mass on an Object’s Acceleration
Abstract: In this lab there were two principals investigated. The first was the relationship between applied force and acceleration. The second was the relationship between mass and acceleration. To study these two relationships, my partners and I used a dynamic cart with added mass on it. This cart was then attached to a pulley system on a “frictionless track” where it was pulled by a string bearing mass over the edge of a table. In the first relationship tested, applied force and acceleration, mass was moved from being on the cart to being on the end of the pulley. My partners and I measured the acceleration with the LabQuest computer every time the cart was released. In order to test the relationship between mass and acceleration, my group added different amounts of mass to the cart and measured the changes in acceleration. From all of the data collected we concluded that force and acceleration have a direct, linear relationship. We also determined that mass and acceleration have an inverse, quadratic relationship.
Background:
When my lab partners and I started this lab, we came in knowing some background information on what we were doing and the concepts involved. We knew that we had to determine the...

...1. Two ropes are attached to a wagon, one horizontal to the west with a tension force of 30 N, and the other east and at an angle of 30° northward and a tension force of 40 N. Find the components of the netforce on the cart. Show all your work.
Answer:
Horizontal NetForce = 40sin(30) – 30
Horizontal NetForce = -10
Vertical NetForce = 40cos(30)
Vertical NetForce = 34.6
Use the Pythagorean theorem = a^2+b^2=c^2
Resultant Force = (-102) + (34.62) = C2 = 33.1 N at 30o
(9 points)
Score
2. A 2.0 kg block rests on a level surface. The coefficient of static friction is µs = 0.60, and the coefficient of kinetic friction is µk = 0.40. A horizontal force, F, is applied to the block. As F is increased, the block begins moving. Describe how the force of friction varies as F increases from the moment the block is at rest to when it begins moving. Indicate how you could determine the force of friction at each value of F―before the block starts moving, at the point it starts moving, and after it is moving. Show your work.
Answer:
U=Ff/Fn
u=the coefficient of friction
Ff= Force of friction
Fn= normal force
9.8x2=19.6N (normal force)
U=Ff/19.6N
static...

...What is Force?
In physics, a force is any influence that causes an object to undergo a certain change, either concerning its movement, direction, or geometrical construction. It is measured with the SI unit of newtons and represented by the symbol F. In other words, a force is that which can cause an object with mass to change its velocity(which includes to begin moving from a state of rest), i.e., to accelerate, or which can cause a flexible object to deform. Force can also be described by intuitive concepts such as a push or pull. A force has both magnitude and direction, making it a vector quantity.
The original form of Newton's second law states that the netforce acting upon an object is equal to the rate at which its momentum changes with time.[1] If the mass of the object is constant, this law implies that the acceleration of an object is directly proportional to the netforce acting on the object, is in the direction of the netforce, and is inversely proportional the mass of the object. As a formula, this is expressed as:
where the arrows imply a vector quantity possessing both magnitude and direction.
Related concepts to force include: thrust, which increases the velocity of an object; drag, which decreases the velocity of an object;...

...Open-ended Investigation (mass and force)
Aim: To show the relationship between Mass, the force acting on it, and acceleration by gathering data through investigations.
Hypothesis: As Mass increases, Acceleration Decreases. Therefore, Acceleration is inversely proportional to mass.
Introduction
A force is a push or pull acting upon an object, as a result of its interaction with another object. In a state of motion, an object experiences different forces which influences its movement. There are many different types of forces which act upon an object; a normal force, a gravitational force, the applied force of the object, and the force of friction.
A normal force is the force which balances the weight of an object on a surface, it travels in the opposite direction as Gravitational forces but always has the same magnitude.
Gravitational forces are magnetic forces from the Earth which pull an object down to the Earth .The normal acts as a balance which keeps the object on a surface.
The applied force is the force which an object applies onto another object. On motor vehicles, the engine turns the wheels, exerting force onto the road in order to move.
The frictional force...

...Theory: Friction is a force that opposes motion. Static friction prevents an objects being set into motion by an external force. Kinetic friction opposes the progress of a sliding object. Static friction is given by Fs< usn where N is the normal force between the object and its support surface and us is the coefficient of static friction. There-fore, the coefficient of static friction is given by
Us= fs, max/ N
Where F s, max is the maxixmum force of static friction. Once the external force overcomes static friction, the object moves. Its motion is opposed by kinetic friction. The force of kinetic friction is given by f k = ukN where u k is the coefficient of kinetic friction. Therefore , the coefficient of kinetic friction is given by
Uk = fk/n
A diagram of the experimental setup is shown in the figure at the right. Of interest is the friction between the block and the tabletop. An external pulling force is provided by the weight hanging on the end of a string which is adjusted to balance the force of friction.
The free- body diagram of the block is shown in the figure at the left. The free body diagram of the pulling mass is shown in the figure on the right. The equations for the forces on the block in the x- and y- directions are written...

...For other uses, see Force (disambiguation).
Page semi-protected
See also: Forcing (disambiguation)
ForceForce examples.svg
Forces are also described as a push or pull on an object. They can be due to phenomena such as gravity, magnetism, or anything that might cause a mass to accelerate.
Common symbol(s): F, F
in SI base quantities: 1 kg·m/s2
SI unit: newton
Derivations from other quantities: F = m a
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In physics, a force is any influence that causes an object to undergo a certain change, either concerning its movement, direction, or geometrical construction. In other words, a force can cause an object with mass to change its velocity (which includes to begin moving from a state of rest), i.e., to accelerate, or a flexible object to deform, or both. Force can also be described by intuitive concepts such as a push or a pull. A force has both magnitude and direction, making it a vector quantity. It is measured in the SI unit of newtons and represented by the symbol F.
The original form of Newton's second law states that the netforce acting upon an object is equal to the rate at which its...

...Chapter 2
Forces
To study the effect of forces acting on particles.
2.1 Equilibrium of a Particle
2.2 Free Body Diagram
2.3 Force Vectors
2.4 Forces in a Plane
2.5 Forces in Space
Expected Outcomes
• Understand the condition for a particle to be in static
equilibrium
• Able to construct free body diagrams
• Able to solve for the forces acting on a static particle
2.1
Equilibrium
of a Particle
www.classical.com/features
2.1.1 Condition for the
Equilibrium of a Particle
• Particle is at equilibrium if it is
a) At rest
b) Moving at constant a constant velocity
2.1.1 Condition for the Equilibrium
of a Particle
(a) Equilibrium at rest
• Newton’s first law of motion
∑F = 0
where ∑F is the vector sum of all the forces acting on the
particle
Even Univ.
Graduates
(a) Equilibrium at rest
• Newton’s Law of
Motion
• 1st law – a particle
originally at rest, or
moving in a straight
line with constant
velocity, tends to
remain in its state
provided the particle
is not subjected to an
unbalanced force.
http://www.jameslogancourier.org/index.php?blogid=1&archive=2006-3-21
2.1.1 Condition for the
Equilibrium of a Particle
(b) Equilibrium at motion
• Newton’s second law of motion
∑F = ma
• When the force fulfill Newton's first law of motion,
ma = 0
a=0
therefore, the particle is moving in...

... 1. Read each description below. Choose the force diagram (free-body diagram) that best represents the description. The forces are acting on the object in red type. You may neglect the effects of air resistance. |
A. Mindy's Christmas tree ornament hangs motionless on a tree. |
B. Corey's Christmas tree ornament is falling to the floor. |
C. A ball thrown by Ginger is moving upward through the air. |
D. A ball dropped by Melissa is falling downward toward the floor. |
E. Matt's book is motionless on a table. |
F. A ball that was thrown upward by Yvonne is at the top of its path. |
2. Read each description below. Choose the force diagram (free-body diagram) that best represents the description. You may neglect the effects of air resistance. |
A. Mark's physics book is on the desk. Mark pushes horizontally (from the side) on the book, but the book does not move. |
B. Kendall's physics book is on the desk. Kendall pushes horizontally (from the side) on the book, and the book moves across the desk at a constant speed. |
C. Jenny pushes a cart at constant velocity down the grocery store aisle. |
D. Eddy is driving his Camaro down a straight, level road while on cruise control. |
E. Ryan is accelerating his Dakota down a straight, level road. |
F. Jackie's Viper is parked on the shoulder of the road while she changes a flat tire. |
3. Paul Hewitt poses this question in his book: "If the...

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