Q: A mass of 0.5 kg moving with a speed of 1.5 m/s a horizontal smooth surface, collides with a nearly weightless spring of force constant k = 50 N/m. The maximum compression of the spring would be
(a) 0.12 m
(b) 1.5 m
(c) 0.5 m
(d) 0.15 m
Ans: (d)