An electric winch pulls an 875 N crate up a 15° incline at 0.25 m/s. The coefficient of friction between the
crate and incline is 0.45.
a. What power does the winch develop?
b. How much electrical power must be delivered to
the winch if it is 85 percent efficient?
Please someone help...?

a. are

dec 23, 2016 - a load of bricks weighing 680 n a distance of 10 m across a parking lot. if if the worker pushes the cart with a constant force of 209 n, what work= force x distance = 220 n x 10 m = 2200 n.m = 2200 j i don't know where the person got it from, but the initial part, work= force x distance me.

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle