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Newton's Third Law

A wheel whose...

Question

A wheel whose moment of inertia is 12kg/m? had an initial velocity of 40rad/s. A constant torque of 20Nm acts on the wheel. The time in which the wheel is accelerated to 100rad/s.

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Solution

Dear student,

$τ = \frac{I (ω_{2} - ω_{1})}{t} t = \frac{12 (100 - 40)}{20} t = 36 s$

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