Well I have lot of these homework questions. Heres another one that I can't figure out.
An Atwood machine consists of two masses, m1 = 6.80 kg and m2 = 8.55 kg, connected by a cord that passes over a pulley free to rotate about a fixed axis
Then there's a picture but I don't know how to...
This is a problem I'm having a world of problem with:
A. What is the angular momentum of a 2.56 kg uniform cylindrical grinding wheel of radius 17.5 cm when rotating at 1480 rpm?
Correct: 6.08 kg*m^2/s
B. How much torque is required to stop it in 6.50 s?
So after 5 tries, I get that...
Alright, I did that. My numbers are that the mass of the ball is 0.252 kg, it was deflected by 39 degrees, and the velocity of the ball is 18.8 m/s. I found that the Impulse = 2.05 kg*m/s. That is not correct with the computer. What am I doing wrong?
I'm having a hard time with this.
A long thin rod lies along the x-axis. One end is at x=2.00 m and the other at x=3.00 m. Its linear mass density λ = 0.300 x2+ 0.500, in kg/m. Calculate mass of the rod.
Can anybody help?