A block of mass slides on a horizontal frictionless table with speed and collides…
PHYSICS · Single correct · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A block of mass m slides on a horizontal frictionless table with speed 3u and collides with and sticks to another block of mass 2m initially at rest at the foot of a smooth incline. The combined block then moves up the incline and finally comes to rest. Neglect air resistance. The maximum height reached by the combined block above the point of impact is
(a) gu2
(b) 8g9u2
(c) 2gu2
(d) 2g3u2