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a wheel has a constant angular acceleration of 3.0 rad/s2. during a certain 4.0s interval it turns through an angle of 120 rad. assuming tha
Question
a wheel has a constant angular acceleration of 3.0 rad/s2. during a certain 4.0s interval it turns through an angle of 120 rad. assuming that the wheel started from rest, how long has it been in motion at the start of this 4 s interval
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Physics
3 years
2021-08-23T13:22:24+00:00
2021-08-23T13:22:24+00:00 1 Answers
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Answers ( )
Answer:
8 s
Explanation:
We are given that
Acceleration=
Time, t=4 s
Angle,
Initial angular velocity,
Let be the velocity at the start of this 4 s interval
We know that
Using the formula
t=8 s