Physics

Problem

Two wheels

P

and

Q

begin to rotate simultaneously about parallel fixed axes. • Wheel

P

starts from rest with a constant angular acceleration of

5\,\text{rad s}^{-2}

. • Wheel

Q

has an initial angular velocity of

20\,\text{rad s}^{-1}

and experiences a constant angular deceleration of

1\,\text{rad s}^{-2}

. (i) After what time will the two wheels have the same angular velocity? (ii) What will that common angular velocity be? (iii) How many revolutions will wheel

P

complete in this time? a. After what time will the two wheels have the same angular velocity? b. What will that common angular velocity be? c. How many revolutions will wheel

P

complete in this time?

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