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The angular velocity of a flywheel obeys the equation wc(t) = A + Bt2 , where t is in seconds and A and B are constants having numerical values 2.75 (for A) and 1.50 (for B). (a) What are the units of A and B if cu is in rad/s?
(b) What is the angular acceleration of the wheel at (i) t = 0.00 and (ii) t = 5.00 s?
(c) Through what angle does the flywheel turn during the first 2.00 s? (Hint: See Section 2.6.) |
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