E102-MOTION ALONG A STRAIGHT LINE
GUIDE QUESTIONS:

1.From the data obtained, what is the effect of the height of the track to the cart’s acceleration? The data shows that sinӨ, which is dependent on the height, is getting higher as acceleration is increasing. This implicates that when object is at higher altitude, its acceleration is faster. 2.From the data obtained, how is time, t related to the inclination of the track? Explain why? Time and position of velocity are interrelated to each other and the height and gravitational pull affects the acceleration of a moving and a free falling object. 3.From the data obtained, how would you account the difference between the picket fence’s acceleration and the value of g? The value of the slope of a graph of average velocity versus time will be the acceleration due to gravity of the falling object.

E102-MOTION ALONG A STRAIGHT LINE

PROBLEM:
1.A police car is searching for a fugitive that managed to escape a while ago. Knowing that he is now safe, the fugitive begins to take a rest until he notices a police car approaching him at 10 m/s, accelerating at 5 m/s2 and it is 100 m away. The fugitive grabs a motorcycle and stars it accelerating at the same rate as the police car. How much time will it take the police car to catch the fugitive?

...Experiment 2: Kinematics of Human Motion
Abstract:
Kinematics is the branch of classical mechanics that describes the motion of bodies (objects) and systems (groups of objects) without consideration of the forces that cause the motion. There are four activities done in this experiment. Graphical analysis of human motion, where displacement vs time and velocity vs. time were graphed. Graphical analysis of motion where in the 10th seconds...

...Physics 12 – Kinematics Worksheet
1. Which one of the following contains only vector quantities?
A. mass, time
B. force, velocity
C. time, momentum
D. acceleration, speed
2. An airplane heads due north with an airspeed of 75 m/s. The wind is blowing due west at 18 m/s. What is the airplane’s speed relative to the ground?
A. 57 m/s
B. 73 m/s
C. 77 m/s
D. 93 m/s
3. Two velocity vectors, v1 and v2 are shown.
Which of the following...

...Kinematics
Position
To specify a position vector you need to specify:
• Origin
• Distance
• Direction
If using a 3D right-handed coordinate system with the
origin being the reference point for the position vector,
it is enough to specify the coordinates x, y and z.
For a moving object the position vector is a function of
time.
Velocity & Acceleration
• Velocity is defined as the change in position over
a change in time; thus the average...

...released until it strikes
the ground.
4. The time it takes for the ball to hit the
ground depends on v0 , g and h.
004 10.0 points
The velocity of a projectile at launch has a
horizontal component vh and a vertical component vv . When the projectile is at the highest point of its trajectory, identify the vertical
and the horizontal components of its velocity
and the vertical component of its acceleration.
Consider air resistance to be negligible.
4. It...

...between B and C in metres per second.
Show clearly how you work out your answer.
(3)
3 A cyclist is travelling along a straight road. The graph shows how the velocity changes with time for part of the journey.
[pic]
a Explain how is acceleration found from a velocity–time graph.
(1)
b Copy and complete the following sentences using the list of words and phrases below. Each one can be used once, more...

...Exercises for Chapter 1 Kinematics
1. An impulsive retarding force of 3 seconds duration acts on a particle which is moving with a forward velocity of 60 m/s. The oscilloscope record of the deceleration is shown. Determine the approximate velocity of the particle at t = 9 s. [answer: -58 m/s] 2. A car can decelerate at 0.8 ‘g’ on a certain road. Find the total emergency stopping distance measured from the point where the driver first sights the...

...-springRobust control applied to a cart-spring pendulum system with uncertainty
Dan Dai Advisor: Professor Roy Smith University of California, Santa Barbara
II. ROBUST C ONTROL STATEMENT The objective of this project is to design a controller that meets the speciﬁed robust performance criteria. When the cart-spring pendulum system is considered, these criteria reﬂects on robustness to outside disturbance and plant uncertainty. To get this controller, it is...

...on a computer screen has a position of r = [4 cm + (2.5 cm/s2)t2]i + (5 cm/s)t j.
a) Find the magnitude and direction of the dot’s average velocity between t = 0 and t = 2 s.
b) Find the magnitude and direction of the instantaneous velocity at t = 0, t = 1 s, nd t = 2 s.
c) Sketch the dot’s trajectory from t = 0 to t = 2 s, and show the velocities calculated in part (b).
(a) Identify and Set Up: From [pic] we can calculate x and y for...

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