## Question

###### A ball of mass 0.442 kg moving east (+x direction) with a speed of 3.72 m/s...

A ball of mass 0.442 kg moving east (+x direction) with a speed of 3.72 m/s collides head-on with a 0.221 kg ball at rest. Assume that the collision is perfectly elastic.

a) What is be the speed of the 0.442-kg ball after the collision?

b) What is be the direction of the velocity of the 0.442-kg ball after the collision? to the east or to the west

c)What is the speed of the 0.221-kg ball after the collision?

d)What is the direction of the velocity of 0.221-kg ball after the collision? to the east or to the west

## Answers

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