A truck pulls boxes up an incline plane. The truck can exert a maximum force of 4,000 N. If the plane's incline is pi/3 and the coefficient of friction is 4/3 , what is the maximum mass that can be pulled up at one time?

1 Answer
May 6, 2017

Let the maximum mass that can be pulled at one time be m.enter image source here
The free body diagram of the block is shown in the figure above
Here,F=mgsin(pi/3)+mumgcos(pi/3)
Putting the values of F and mu
We get
4000=m [10xxsqrt3/2+4/3xx10xx1/2]
Now the value of M can be calculated