Question

Matthew is waterskiing. As the boat starts moving, he is at an angle of 8.0 degrees to the right of the boat. The boat applies 250 newtons over the first 50 meters, while the angle stays at roughly 8.0 degrees. What work has the boat done on Matthew?

Answer 1

Explanation:

Work is said to be done when a force applied to a body cause the body to move over a distance.

Work done = Force * distance

W = fdsinθ

Given

Force = 250N

distance = 50m

θ = 8.0°

Substitute into the formula to and calculate work:

Work = 250*50 sin8.0°

Work = 12,500sin8.0°

Work = 1739.66 Joules

Hence the boat has done  1739.66 Joules of work on Matthew

Answer 2

The answer is D. 1.7 x 10^4 on Plato