Pulley
Not what you're looking for?
Two blocks of mass m and 3m are slug over a pulley by a massless rope. The massess are initially at the same height. The pulley is a uniform solid disk of mass 12m and radius R. The total length of the rope including the part that is slung over the pullley is L The masses are released at time t = 0
Determine the time it takes for the pulley to complete one revolution
Determine the time that it takes for the smaller mass to crash into the pulley.
Purchase this Solution
Solution Summary
The solution determines the time it takes for the pulley to complete one revolution and the time that it takes for the smaller mass to crash into the pulley.
Solution Preview
Torque acting on the pulley= (3m-m) x g x R= 2 m g R ----(1)
Torque= I alpha
Where I = moment of inertia = ½ M R ^2
And alpha = angular acceleration
M= mass of the pulley = 12 m
Therefore I= ½ x (12 m ) R ^2= 6 m R^2
Torque= I alpha = 6 m R^2 x alpha ----------(2)
Equating 1 and ...
Purchase this Solution
Free BrainMass Quizzes
Classical Mechanics
This quiz is designed to test and improve your knowledge on Classical Mechanics.
Basic Physics
This quiz will test your knowledge about basic Physics.
Introduction to Nanotechnology/Nanomaterials
This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.
Variables in Science Experiments
How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.
The Moon
Test your knowledge of moon phases and movement.