A water skier, moving at a speed of 6.42 m/s, is being pulled by a tow rope that makes an angle of 39.7 ° with respect to the velocity of the boat (see the drawing). The tow rope is parallel to the water. The skier is moving in the same direction as the boat. If the tension in the tow rope is 131 N, determine the work that it does in 13.1 s.

Question

bobpursley · Answer

Work=tension*distance*sinTheta there theta is the angle between tension and the displacement vector (39.7deg) distance=velocity*time

bobpursley · Answer

ARRRRGGGGG. Work=tension*distance*COSINETheta sorry about that.

Matt · Answer

thanks

matt · Answer

if your question is exactly like mine with velocity=8.06m/s, theta=38.3, Tension= 138N, and time is 14.5 the answer is 12656.92J ;)