In which type of collision is kinetic energy conserved, a) elastic collisions, b) inelastic collisions, c) both elastic and inelastic collisions or d) neither elastic nor inelastic collisions.

Under what condition is the energy lost during a collision maximum? A) e=1.0 B) e = 0.0 C) e=-1.0 D) Collision is non-elastic.

A trolley of mass 0.4 kg rolls along a level, frictionless ramp at a velocity of 6.0 m s-¹. It collides with a second trolley of mass 1.0 kg which is initially at rest. The first trolley rebounds with a speed of 1.8 m s-¹. a) Stating clearly any principles involved, find the velocity of the second trolley after the collision. b) Compare the kinetic energy before and after the collision. Is the collision elastic or inelastic? Justify your answer.

When 2 blocks smash into each other in a maximally inelastic collision which of the following is true: Choose ALL CORRECT answers. You may have to select more than one statement below: Mechanical Energy was NOT conserved during the collision The bigger block travels with a bigger velocity than the smaller block after the collision. momentum was conserved during the collision momentum was not conserved during the collision The maximum amount of mechanical energy that could be lost in the collision was lost. The final velocity of each block must be zero. The objects have the same final velocity. O Mechanical Energy WAS conserved during the collision

4. In a perfectly inelastic collision, two objects collide and stick together. Is momentum conserved in the collision? Is energy conserved? Why or why not?

What types of collisions conserve total momentum of the system? O Inelastic Collisions O Both elastic and inelastic collisions Elastic Collisions No collisions conserve total momentum What types of collisions conserve total kinetic energy of the system? O Inelastic Collisions O Both elastic and inelastic collisions No collisions conserve total kinetic energy Elastic Collisions

1a)A 4.50 kg ball rolling north at 5.00 m/s collides with a 2.50 kg ball rolling south at 3.00m/s. If the collision is elastic, set up the equations you would solve to determine how fast is each ball moving after the collision.   1b)If the collision between the two balls in question (1a) instead results in both balls sticking together as one, what will their resulting velocity be?

In inelastic collision: a) Both linear momentum and energy are conserved.  b)  Linear momentum is conserved, but energy is not conserved.   c)  Linear momentum is not conserved, but energy is conserved.  d)  Both linear momentum and energy are not conserved.

A 1 500 kg car travelling at 25 m/s collides with a 2 500 kg van stopped at a traffic light. As a result of the collision, the two vehicles become entangled. With what initial speed will the entangled mass move off, and is the collision elastic or in elastic? (K:1) SPEED TYPE OF COLLISION A. 9.4 m/s Flastic B. 9.4 m/s Inclastic C. 15 m/s Elastic D. 15 m/s Inclastic Select one: O C D QA B O

Which of these statements are true? Explain why below: a) If an elastic collision occurs, then the change in total momentum is unpredictable. b) If an elastic collision occurs, then the total momentum is increased by the collision. c) If an elastic collision occurs, then the total momentum is decreased by the collision. d) If an elastic collision occurs, then the total momentum remains essentially unchanged by the collision. Explanation:___________________________________________________________________________________________________________________________________________________________________________________________________________________________________