November 28, 2015

Homework Help: physics

Posted by Anonymous on Monday, February 20, 2012 at 9:31pm.

The efficiency of a pulley system is 81 percent. The pulleys are used to raise a mass of 85 kg to a height of 8.5 m. The acceleration of gravity is 9.81 m/s^2. What force is exerted on the rope of the pulley system if the rope is pulled for 14 m in order to raise the mass to the required height?

Answer this Question

First Name:
School Subject:

Related Questions

More Related Questions