- #1
Kirushanthy
- 3
- 0
Homework Statement
Please see attached document.
Homework Equations
How do I find the angular velocity because I got a value of of -99.1?
The Attempt at a Solution
I used the force equation for M1 and M2. So Fx for M1: Fx= T-um1g=m1a. Fx for M2: Fx= m2gsin(theta)-T-um2gcos(theta)=m2a. Since the 2 accelerations are the same, I used the 2 equations to solve for a and i got a value of 5.415m/s^2. Angular acceleration is equal to a/r so i did 5.415/0.20= 27.075. Since angular speed should be angular acceleration multiplied by time, I found time by using the xf=3=1/at^2, where I got t= 1.05s. When I multiply the values, I get 28.5. What am I doing wrong?I have my exam tomorrow so I would really appreciate it if someone can help me before thent!