A ball is dropped from the roof of a building

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

Problem

A ball is dropped from the roof of a building. In the last second of its fall, it covers

45\%

of the total height of the building. Take

g = 10\,\text{m/s}^2

. The height of the building is approximately (a)

100\,\text{m}

(b)

50\,\text{m}

(c)

75\,\text{m}

(d)

120\,\text{m}