Question

A block of mass 0.50 kg is moving with a speed of 2.00 ms^-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

(a) 0.16 J

(b) 1.00 J

(c) 0.67 J

(d) 0.341 J

Answer 1

Correct option (c) 0.67 J
Explanation:
From law of conservation of momentum. we have