Friday
October 24, 2014

Homework Help: Physics

Posted by Andy on Sunday, November 3, 2013 at 7:43pm.

elbow raises a 1200 N piano a distance of 5 meters using a set of pulleys. elbow pulls in 20.0 meter of rope while exerting a force of 340 N.
a) what is the work output?
b) what is work input
c) what is the mechanical advantage of this machine?
d) what is the efficiency of this machine?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - Stan raises a 1110 N piano a distance of 5.00 m using a set of pulleys...
physics - A person holds a 1.42N baseball in his hand, a distance of 34.0cm from...
biomechanic - How much force must be produced by the biceps brachia at a ...
biomechanics - During an elbow flexion exercise, the relative angle at the elbow...
physics - A piano is being moved into a concert hall up a 15m ramp that has a ...
Physics - A forearm with a mass of 1.2kg supports a ball with a mass of 5.44 kg...
biomechanics - During a biceps curl, the elbow's relative angle during flexion ...
physics - A person holds a 1.56 baseball in his hand, a distance of 34.0 cm from...
Physics Classical Mechanics - You are holding a ball of mass m2 in your hand. In...
Physics - one last time - A forearm with a mass of 1.2kg supports a put with a ...

Search
Members