Thursday

January 29, 2015

January 29, 2015

Posted by **John** on Friday, December 1, 2006 at 1:29pm.

(a) Find the magnitude of the acceleration of the blocks.

m/s2

(b) Find the tension T1 in the cord at the left.

N

(c) Find the tension T2 in the cord at the right.

N

First, calculate the moment of inertia for the pulley.

Then, notice on the pulley that angular acceleration is related to cord acceleration by

alpha*radius= linear acceleration.

Now, writing a system equation...

m2*(g-a)= pulling force by gravity

I*alpha= Torque on pulley

I*alpha/radius = force on pulley extreme

I*acceleration/radius^2

m1*a= tension on m1

or

m2*(g-a)=I*a /r^2+m1*a

solve for a.

check my thinking.

i need help with writing system of equations for ages

**Answer this Question**

**Related Questions**

Physics - Two blocks sit on a horizontal surface. They are connected to each ...

Physics - In the figure below, assume that the slope is frictionless and that ...

physics - Two blocks of mass m1 = 1.2 kg and m2 = 1.7 kg are connected by a ...

physics - Three blocks are located on a horizontal table. The coefficient of ...

math - Two blocks sit on a horizontal surface. They are connected to each other ...

physics - Two blocks with masses M1 = 3.9 kg and M2 = 5.0 kg are connected with ...

Physics - Three blocks are located on a horizontal frictionless table. They are ...

physics - Three blocks are located on a horizontal table. The coefficient of ...

physics - Two blocks of mass m1 = 1.0 kg and m2 = 2.5 kg are connected by a ...

physics - A system has three masses, a 10kg mass is lying on a level surface and...