A ball which is dropped from the top of a building strikes the ground with a speed of

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

39. A ball which is dropped from the top of a building strikes the ground with a speed of

30 \mathrm{~m} / \mathrm{s}

. Assume air resistance can be ignored. The height of the building is approximately: (A) 15 m (B) 30 m (C) 45 m (D) 75 m