Question: A wheel starts from rest and has an angular acceleration of 7.8 rad/s2rad/s2. The time it takes to make 13 revolutions is: and A wheel

A wheel starts from rest and has an angular acceleration of 7.8 rad/s2rad/s2. The time it takes to make 13 revolutions is:

and

A wheel starts from rest and has an angular acceleration of 6 rad/s2rad/s2. When it has made 14 rev its angular velocity is:

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