[بطرآنه العين]

ممكن مساعدتي في حل المسألتين

A 5.0 kg block moving east with speed of 6 m/s collides head on with another 8.0 kg block
moving west with speed of 4 m/s. After the collision the 5.0 kg block was moving west with
speed of 5 m/s while the 8.0 kg block was moving east.
a) What is the speed of the 8.0 kg block after the collision
b) Determine whether the collision was elastic or inelastic. (Show complete work)



A 10.0 Kg block is released from point A in the figure below. The block travels along a
smooth frictionless track except for the rough 1 m long portion between points B and C. It
makes a collision with stationary 10 kg ball after passing point C. The ball moves forward with
speed of 2 m/s.
The coefficient of kinetic friction is 0.4
a) What is the speed of the block at point C
b) What is the velocity of the block after the collision
c) Does the block return back to the inclined? If It does how high does it get on the incline
d) Determine whether the collision was elastic or inelastic. (Show complete work