Question

14.What is the kinetic energy of a 3kg ball that is rolling 2m/s?

Answer 1

KE formula is .5mv^2
So KE=.5mv2
KE=.5(3)(2)^2
KE=.5(3)(4)
KE=.5(12)
KE=6 joules

Answer 2

1.5x4 =6 so the answer is 6 joules