Question

Block A of mass
m_{A}=6kg ,slides down an incline from a height of 10 m
from the ground. Block A then collide with block B, with a mass
m_{B}=8kg which is at rest in the ground. The collision is
elastic. There is no friction between the blocks and the incline
nor between the blocks and the ground.

a) Find the velocity of A before it collides with B ( 5 points)

b) Find the maximum height that block A climbs up in the incline after the collision (10 point)

Answer #1

block 1 of mass m1 slides from rest along a
frictionless ramp from an unknown height h and then
collides with stationary block 2, which has mass m2 =
3m1 . The collision is an elastic one. After the
collision, block 2 slides into a friction-filled region where the
coefficient of kinetic friction is 0.5 and comes to a stop through
a distance d = 10 m in that region. What is the height
h?

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