At a time t
= 3.20 s
, a point on the rim of a wheel with a radius of 0.210 m
has a tangential speed of 48.0 m/s
as the wheel slows down with a tangential acceleration of constant magnitude 10.0 m/s2
.
Part A
Part complete
Calculate the wheel's constant angular acceleration.
α
=
-47.6
rad/s2
Previous Answers
Correct
Part B
Calculate the angular velocity at t
= 3.20 s
.
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ω
=
rad/s
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Incorrect; Try Again; 3 attempts remaining
Part C
Calculate the angular velocity at t=0
.
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ω0
=
rad/s
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Incorrect; Try Again; 5 attempts remaining
Part D
Through what angle did the wheel turn between t=0
and t
= 3.20 s
?
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θ
=
nothing
rad
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Part E
Prior to the wheel coming to rest, at what time will the radial acceleration at a point on the rim equal g
= 9.81 m/s2
?
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t
=
nothing
s
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