A motor pulls a 40‑kg crate up an s = 6 m ramp with angle ϕ=…

A motor pulls a 40‑kg crate up an s = 6 m ramp with angle ϕ=60°{“version”:”1.1″,”math”:”ϕ=60°”}and a constant velocity of v = 1 m/s. The motor is supplied a constant power of 300 W. The coefficient of kinetic friction is 0.20.    (10 points) Determine the work done by the motor to get the box from the bottom to the top of the ramp. _______ N-m b. (10 points) Determine the efficiency of the process. _______ %

Sketch a velocity–time graph for an object that starts from…

Sketch a velocity–time graph for an object that starts from rest at t=0, accelerates uniformly at a rate of 2 m/s2 for 2 seconds, then moves at constant velocity for 4 seconds.   a. (8 points) Plot the v-t graph on a set of axes on your written work. b. (7 points) How far did the object travel over the 6-second period? _______ m