A 5 kg cart is pushed by a 30 N force against friction for a distance of 10 m in 5 sec. Determine the power needed to move the cart.
mass = 5kg, force = 30 N, time = 5 s,distance = 10 m
power needed( p) = work done / time = F*s/t = 30 * 10/5 = 60 watts
power needed( p) = work done / time = F*s/t = 30 * 10/5 = 60 watts