Question

You pull a your friend along in a sled (combined mass is 65 kg), by pulling the rope at an upward angle of 20 degrees with respect to the ground with enough force to keep the sled moving at a constant velocity of m/s. The coefficient of kinetic friction between the ground and the sled is 0.15. (a) Draw a force diagram for the friend/sled system. (b) Once you get to constant velocity, you pull the sled 15 m. What is the work done by friction on the sled? (c) What is the total work done on the sled? (d) What force ! F must you apply to the rope to keep the sled moving at constant velocity over this distance? (Note that I am asking for a vector!) (e) At this point, you stop pulling and let the sled come to rest. Draw the force diagram for the sled/friend system after you stop pulling. (f) Use the work energy theorem to find the distance the sled travels before coming to rest.

Velocity is <3, 0, 0> m/s

Answer 1

Please rate the work if you are satisfied with the solution or else kindly ask your doubts or queries in the comment section below