a mother lets her 25.0 kg child vertical distance of 5.00 m in 8.00 s. how much average power ance of 5.00 m in 8.00 s. How much average power does she exert?

DP-1 A 7.50kg box is pushed 1.70m along a frictionless horizontal table top by a constant force directed below as shown to the right. The work done by P is 25.0J. Find the angle 8 between the force P and the horizontal. P=20.0N Table top Ax 1.70m1 7.50kg

A system of two paint buckets connected by a lightweight rope is released from rest with the 12.0-kg bucket 2.50 m above the floor as shown in the Figure. Use the principle of conservation of energy to find the speed with which this bucket strikes the floor. Ignore friction and the mass of the pulley a) 4.43 m/s c) 4.95 m/s e) None. 12.0 kg 1. 2.5 m 6.0 kg b) 5.42 m/s d) 4.04 m s

1. You push a 67 kg box across a floor where the coefficient of kinetic friction is uk = 0.55. The force you exert is horizontal.(a) How much power is needed to push the box at a speed of 0.50 m/s?(b) How much work do you do if you push the box for 35s? Explain and draws.