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Elastic Calculations

Last updated 29 days ago

10 questions

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Question 1

1.

What makes Elastic Collisions different from the rest?

The objects start together at rest and split apart

Objects start apart and stick together once they collide, giving them one final velocity

Objects start apart and 'bounce' away from each other after they collide, giving them two final velocities

Momentum and Kinetic Energy are conserved

Only Momentum is conserved

Only Kinetic Energy is conserved

Question 2

2.

Object A is 4 kg while Object B is 2 kg. If Object A moves towards the stationary Object B at 5 m/s, what will be the resulting motion of Object A after the Elastic Collision?

A will stop

A will continue forward

A will move backwards after colliding

Question 3

3.

Object A is 4 kg while Object B is 4 kg. If Object A moves towards the stationary Object B at 5 m/s, what will be the resulting motion of Object A after the Elastic Collision?

A will stop

A will continue forward

A will move backwards after colliding

Question 4

4.

Object A is 2 kg while Object B is 4 kg. If Object A moves towards the stationary Object B at 5 m/s, what will be the resulting motion of Object A after the Elastic Collision?

A will stop

A will continue forward

A will move backwards after colliding

Question 5

5.

Check all of the following that depict Elastic Collisions

Two skaters pushing away from each other on the ice

A bumper car rear ending another and sending it flying forward

A rear end wreck with the car's bumper stuck to the other car

A girl kicking a soccer ball

A baseball player catching a ball

Two sumo wrestlers running at each other and sticking together

Question 6

6.

A bowling ball (10 kg) is on the loose and rolling at 8.4 m/s towards second stationary bowling ball (10 kg). If the first ball stops after colliding, what is the final velocity of the second ball?

Question 7

7.

A 150 kg car is traveling at 7.5 m/s before hitting a stationary 10 kg shopping cart. If the car continues forward at 3.4 m/s, what is the final velocity of the shopping cart?

Question 8

8.

A 20 kg kid is running at 4.8 m/s towards their 53 kg parent. When they collide with the unsuspecting adult, the parents nudges forward at 2.4 m/s. What is the final velocity of the kid?

Question 9

9.

A 40 kg soccer player is kicking a ball at 7.5 m/s. If the 3.5 kg ball is now moving at 53.7 m/s, how much velocity does the player have now?

Question 10

10.

A 2.9 kg ball is thrown at 15.7 m/s. It hits 43 kg innocent bystander and the ball moves backwards at 0.8 m/s. What is the speed the bystander moves forward?