Question

What’s the velocity of a ball falling with 100 joules of kinetic energy and a mass of 2 kilograms?

Answer 1

KE = 1/2 mv^2
100 = (1/2)*(2)*v^2
v= 10m/s

Answer 2

K.E.= 1/2 mv²
100 = 1/2 * 2 * v²
v² = 100
v = √100
v = 10

In short, Your Answer would be 10 m/s

Hope this helps!