Rotational Velocity & Acceleration Video Lessons

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Problem: Two coins rotate on a turntable. The turntable is also speeding up. Coin B is twice as far from the axis as coin A.1. The angular velocity of coin B is ___ that of coin A.a. Four Times. b. twice c. same as d. half e. 1/42. The angular acceleration of coin B is ___ that of coin A. a. Four Times. b. twice c. same as d. half e. 1/4

FREE Expert Solution

In this problem, we looking into the effect of the radius on angular velocity and angular acceleration for the same rotational speed.

Angular velocity is the angle covered in one second:

ω=θr

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Problem Details

Two coins rotate on a turntable. The turntable is also speeding up. Coin B is twice as far from the axis as coin A.

1. The angular velocity of coin B is ___ that of coin A.a. Four Times. b. twice c. same as d. half e. 1/4

2. The angular acceleration of coin B is ___ that of coin A. a. Four Times. b. twice c. same as d. half e. 1/4

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Rotational Velocity & Acceleration concept. You can view video lessons to learn Rotational Velocity & Acceleration. Or if you need more Rotational Velocity & Acceleration practice, you can also practice Rotational Velocity & Acceleration practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Strachan's class at UK.