Wayne pulls a 315 N sled along a snowy path using a rope that makes a 45.0° angle with the ground. Wayne pulls with a force of 41.8 N. The sled moves 16 m in 3.0 s. What power does Wayne produce?

Answer 1

Power = (Force x Distance) / Time
Power = (41.8 N x 16 m) / 3.0 s
Power = 688.8 W

Answer 2

Power = (Force Applied )(Cos 45)(v)
Velocity = d/t = 16/3 = 5.3
Force Applied = 41.8
(41.8)(Cos 45)(5.3)= 156.65
Power = 156.65 watts