Question

A force of 2000N pulls a load at an angle of 60degrees with the horizontal. if the weight of the object is 3000N, Calculate the coefficient of static friction.​

Answer 1

If one assumes that F will just start the object to move:

F = μ Wa cos θ where θ is the angle of the applied force

and Wa is the apparent weight of the object

μ = F / (Wa cos θ)

Note that Wa = W - F sin θ true weight less component of applied force

Wa = 3000 - 2000 sin 60 = 1268 N

μ = 2000 / (1/2 * 1268) = 3.15 (seems to be very large, usually < 1)