A piece of wood of mass 0.03 kg is dropped from the top of a building 100 m high. At the same time, a bullet of mass 0.02 kg is fired vertically upward ….

Q : A piece of wood of mass 0.03 kg is dropped from the top of a building 100 m high. At the same time, a bullet of mass 0.02 kg is fired vertically upward with a velocity of 100 ms-1 from the ground, The bullet gets embedded in the wooden piece after striking. Find the height to which the combination rises above the building before it starts falling.

(a) 46.5 m

(b) 41.6 m

(c) 49.7 m

(d) 52.3 m

Ans: (b)