Which of the following expressions gives the speed of a body just before it reaches…

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

Problem

Which of the following expressions gives the speed

v

of a body just before it reaches the ground when it is released from rest from a height

h

(neglect air resistance)? (a)

v = 2\sqrt{gh}

(b)

v = \sqrt{gh}

(c)

v = \sqrt{2gh}

(d)

v = \sqrt{\dfrac{gh}{2}}