Question

A 10 kg weight is raised at a hight 2m with an acceleration 1.5m/s2, find total work done?

Answer 1

http://imgur.com/uV6FCja

Answer 2

By using formula to find work:
W=F.S
but Acc. to 2nd law of motion:
F=ma
by putting the value of F we get:
W=ma*S
By putting the values of mass, acceleration and distance:
W=10*1.5*2
W=30J