Monday
April 21, 2014

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:
Answer:

Related Questions

physics - A pulley system reduces the effort of lifting a big bucket of water ...
physics - You exert a force of 455N in pulling 15.0m of rope using a pulley ...
physics - a) In raising a 4800 N piano with a pulley system, the workers note ...
Physics - A pulley system lifts a 500-lb block 1.0 foot with an effort of only ...
Physics - A pulley system has an efficiency of 78.0 per- cent. The acceleration ...
PHYSICS - NEED HELP ON THE ANSWER OF THIS PROBLEM THE EFFICIENCY OF THE PULLEY ...
Physics please help! check if its correct - A 3.00 kg stone is tied to a thin, ...
physics - A pulley system is 76% efficient. If a 9000 kg box is lifted a ...
Physics - A 3.30-kN piano is lifted by three workers at a constant speed to an ...
Physics - Question: Two masses 2.2 Kg and 3.2 Kg connected by a rope over a ...

Search
Members