Question

if a stone of mass 3 kg be thrown with a kinetic energy of 37.5 Joule find its velocity

Answer 1

given : kinetic energy = 37.5 , mass m=3 kg , velocity v=?

kinetic energy= 1/2 × m× v²

37.5=1/2 × 3 × v²

v=√37.5 / 1/2 × 3

v =5 m/s

Answer 2

Answer:

5m/s

Explanation:

K.e=1/2mv²=

37.5=1/2×3v²=v²=75/3

=v=5m/s