1
answer
0
watching
1,154
views
23 Nov 2019
A CD with a diameter of 12.0cm starts from rest and with a constant angular acceleration of 1.0 rad/sec acquires an angular velocity of 5.0 rad/sec. The CD continues rotating at 5.0rad/sec for 15.0 seconds and then slows to a stop in 12.0 seconds with a constant angular deceleration. What is the centripetal acceleration of a point 4.0cm from the center at the time 10.0 seconds from the start? Answer: 1.0m/s but I'm not sure how to figure this one out. Thanks!
A CD with a diameter of 12.0cm starts from rest and with a constant angular acceleration of 1.0 rad/sec acquires an angular velocity of 5.0 rad/sec. The CD continues rotating at 5.0rad/sec for 15.0 seconds and then slows to a stop in 12.0 seconds with a constant angular deceleration. What is the centripetal acceleration of a point 4.0cm from the center at the time 10.0 seconds from the start? Answer: 1.0m/s but I'm not sure how to figure this one out. Thanks!
Hubert KochLv2
23 Jul 2019
