A 2.81 kg hollow cylinder with inner radius 0.29 m and outer radius 0.5 m rolls without slipping when it is pulled by a horizontal string with a force of 47.7 N, as shown in the diagram below.
Its moment of inertia about the center of mass is .5m(r(out)^2 + r(in)^2).
What is the...
Problem:
The turntable of a record player rotates at a rate of 50.7 rev/min and takes 92.7s to come to rest when switched off.
Calculate the magnitude of its angular acceleration. Answer in units of rad/s^2.
Solution:
First I converted rev/min to rad/s. Which I got to be 5.309...
Homework help. (Solved)
A golf ball is hit at ground level. The ball is observed to reach its maximum height above ground level 4.3s after being hit. 1.2s after reaching this maximum height, the ball is observed to barely clear a fence taht is 309 ft from where it was hit. The accelerration...