A net force of 15N acts upon a body of mass 3kg for 5s, calculate the change in the speed of the body

A net force of 15N acts upon a body of mass 3kg for 5s, calculate the change in the speed of the body

A 25.0ms-1

B 9.0ms-1

C 2.5ms-1

D 1.0ms-1

Answer is C