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If I am only given one of the masses of the objects and acceleration and asked to find the mass of the other object. How do I know if object 1 is gonna go down the ramp lifting object 2 or object 2 going down lifting object 1 up the ramp?

object 1: on ramp
object 2: hanging on pulley

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Home >All Categories > Science & Mathematics >Physics >Open Question Scott T Member since:March 29, 2011Total points:85 (Level 1)A frictionless pulley, which can be modeled as a 0.80kg solid cylinder with a 0.35m radius, has a rope going over it.
The tensions in the rope are 12 N and 10 N. What is the angular acceleration of the pulley?Answer Question

by Kunal Grover Member since:May 21, 2010Total points:122 (Level 1)Diff in Torques due to tensions cause angular acc
T1*r-T2*r=(Moment of inertia)*Angular acc
Moment of inertia for solid cyl=M*r*r/2
Ans=10/7 rad/s

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