Collisions and Car Crashing (Week 5)

Friday, 6 April 2018

3:36 PM

Untitled picture.png Machine generated alternative text:
1
out of 2 CO
Flag
A billiard ball collides with the (stationary) wall of the billiard table Before the collision the velocity of the ball is 4 62 ms' 1 the wall. After the collision the velocity 4S8 ms"
collision?
Answer: 089
away from the wall What is the coefficient of restitution, e, for this

Untitled picture.png Machine generated alternative text:
2
out of 2 CO
Flag
3
out of 2 CO
Flag
During the experiment you record the following data about the speed of the cart before and after the collisiony
Initial Velocity Final velocity (mö)
Trial 1
Trial 2
Trial 3
0.122
0.136
0.145
-0021
-0027
-0027
What is the coefficient of restitution? Give your answer with the correct number of significant figurey
Answer: ff19
Well done! Your answer should be given to 2 significant figures.
What is the uncertainty in the coefficient of restitution? (give your answer to 2 significant figures)
Answer: C013

Untitled picture.png Machine generated alternative text:
4
of 00
5
of 00
6
of 2 00
During part of this experiment you will be measuring the acceleration of an object as it undergoes a collision. You will use an accelerometer to produce a graph similar to the one shown below
0
Time
use this graph, showing the collision of a 043 kg cart with a bumper, and the data below to answer the questions.
Point Time (s) Acceleration (ms )
What is the duration of the collision?
Well Done
What is the maximum acceleration?
8.34
What is the impulse during the collision?

Untitled picture.png Machine generated alternative text:
Calculate the area under the acceleration time graph and then multiply it by the mass.
Try again
Untitled picture.png Machine generated alternative text:
4
of 00
5
of 00
6
of 2 00
During part of this experiment you will be measuring the acceleration of an object as it undergoes a collision. You will use an accelerometer to produce a graph similar to the one shown below
0
Time
use this graph, showing the collision of a 043 kg cart with a bumper, and the data below to answer the questions.
Point Time (s) Acceleration (ms )
What is the duration of the collision?
Well Done
What is the maximum acceleration?
8.34
What is the impulse during the collision?

Ink Drawings
Ink Drawings

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