Thursday
April 17, 2014

Homework Help: Physics

Posted by Charlie on Monday, April 23, 2012 at 7:57pm.

A special pulley has two discs with radii R1 = .8 m and R2 = .35 m. A rope from the R2 disc connects the pulley to a wall and a rope from the R1 disc connects the pulley to a hanging mass. The axle is frictionless. The total mass of the pulley is 15 kg.
a. If the hanging mass is 20 kg, what is the tension in the rope connected to the wall?
b. What is the total force that the axle exerts on the pulley? In other words, what total force must the axle exert for the pulley to remain in equilibrium?
c. If the rope attached to the wall is cut, the mass falls 2 m in 1.2 seconds. What is the moment of inertia of the pulley?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

physics - A battery of emf and negligible internal resistance is connected to ...
Physics - 1. Question: Consider two planets with uniform mass distributions. The...
physics - Two artificial satellites, 1 and 2, orbit the Earth in circular orbits...
Physics, please help me today. - four pulleys are connected by two belts. Pulley...
physics - Two hypothetical planets of masses m1 and m2 and radii r1 and r2, ...
Database - 22. Which one of the following schedules has a conflict? A) Sa: r1(X...
Physics - When we are supposed to calculate the value of "temperature ...
physics (tension in strin and acceleration of syst - two bodies of 9kg and 5.7kg...
Physics - An X-ray binary consists of 2 stars with masses m1 (the accreting ...
physics - The figure below shows two objects with masses m and M which are ...

Search
Members