Question
Fri December 23, 2011 By:
 

A 150 kg engine develops 500w/kg.What force does it exert in moving a car at the speed of 20m/s.

Expert Reply
Sun December 25, 2011
Power = 500 x 150 = 75000 W
P = F x v
F = P/v
   = 75000/20 = 3750 N
Ask the Expert