acceleration of -1.5m/s2. What is the final velocity of the car? How far does the car travel in this time interval? vf = vi + a(Dt) or vf = (0 m/s) + (-1.5 m/s2)(5.0 s) = -7.5 m/s Dx = vi(Dt) + 1/2a(Dt)2= Dx = (0)(5.0 s) + 1/2(-1.5 m/s2)(5.0 s)2 = -18.75 m or -19 m (sig figs). 2E 1. Find the velocity after the stroller has traveled 6.32 m. (A person pushing a stroller starts from rest‚ uniformly accelerating at a rate of 0.500m/s2. What is the velocity of the stroller after it has traveled 4.75m
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Name _ ___________________ Motion in 2D Simulation Go to http://phet.colorado.edu/simulations/sims.php?sim=Motion_in_2D and click on Run Now. 1) Once the simulation opens‚ click on ‘Show Both’ for Velocity and Acceleration at the top of the page. Now click and drag the red ball around the screen. Make 3 observations about the blue and green arrows (also called vectors) as you drag the ball around. 1. The green vector moves in the direction of the mouse until the red ball catches up to
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and observed. This kind of mechanism is very commonplace in machines. Machines are made up of a number of parts and relative motion between the various parts permits the working of the machine. As the crank is rotated the rod starts moving but the velocity is not uniform. It is greater towards one direction than the other. This principle is utilized extensively in some machines. Aim Understand the relative motion of the rotational and sliding joint. Understand the movement of the rotational and
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B: Vector Quantity - a physical measurement that contains directional information. C: Scalar Quantity - a physical measurement that does not contain directional information. D: Acceleration - the time rate of change of an objects velocity. E: Free Fall - the motion of an object when it is falling solely under the influence of gravity. 2. No. Motion depends on the reference point that is used. 3. That depends on the reference point that is used. The glass is not moving
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STARWARD ACADEMY WORKSHEET # 2 MOMENTUM DUE: 1. Calculate the momentum of an object if: (a) its mass is 4.0 kg and its velocity is 8.0 ms-1 (b) its mass is 500 kg and its velocity is 3.0 kms-1 (c) a force of 20 N is applied to it for 6.0 s and it moves from rest (d) its mass is 2.0 kg and it falls from rest for 10 s (assuming g = 10 ms-1 or 10 Nkg-1). 2. A car of 1200 kg is pushed along a level road by two men. If they use a force of 800 N and frictional forces acting against
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Picket Fence to travel the 5.0 cm. 2. If an object is moving with a constant acceleration‚ what is the shape of its velocity vs time graph? Answer: If an object is moving at a constant acceleration then the shape of the corresponding velocity vs time graph will look like a linear line going up diagonally on the graph. 3. Does the initial Velocity of an object have anything to do with its acceleration? For example‚ compared to dropping an object‚ if you throw it downward
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Projectiles Practical Report 1. Introduction Velocity is a vector measurement of the rate and direction of motion or‚ in other terms‚ the rate and direction of the change in the position of an object. [1] Velocity can be found many ways through various suvat Equations and their rearranged forms. For example v2=u2+2as in which the square of the final velocity can be found if you know the objects initial velocity‚ the acceleration and the distance travelled. Using such formulae makes it possible
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Impact Of a Jet Introduction: Over the years‚ engineers have found many ways to utilize the force that can be imparted by a jet of fluid on a surface diverting the flow. For example‚ the pelt on wheel has been used to make flour. Further more‚ the impulse turbine is still used in the first and sometimes in the second stages of steam turbine. Firemen make use of the kinetic energy stored in a jet to deliver water above the level in the nozzle to extinguish fires in high-rise buildings
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between sparks‚ we can calculate a set of average velocities for the plummet using the definition: v = Dx Dt It can be shown that the average velocity during any time interval is equal to the instantaneous velocity at the midpoint in time of the interval‚ provided that the acceleration is constant during the time interval. The set of average velocities described above may then be treated as a set of instantaneous velocities. Once velocities are known at definite times‚ we can find the average
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Impulse and Momentum Lab Part I: As the first lab of the Physics 2 curriculum‚ our class completed a lab experiment that introduced us students to a new concept that would be a foundation to the future topics that we learn in this class. In this lab activity‚ we used a lab cart on a flat track to compare the collision of the cart with a force sensor with and without the plunger during different trials. The materials that we would need for this activity are a lab cart on a flat track‚ a timer
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