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vesna_86 [32]
3 years ago
12

A machinist turns the power on to a grinding wheel, at rest, at time t = 0 s. The wheel accelerates uniformly for 10 s and reach

es the operating angular velocity of 58 rad/s. The wheel is run at that angular velocity for 30 s and then power is shut off. The wheel slows down uniformly at 1.4 rad/s2 until the wheel stops. In this situation, the total number of revolutions made by the wheel is closest to:
SAT
1 answer:
bogdanovich [222]3 years ago
7 0
<span>The wheel accelerates uniformly for 10s and reaches the operating angular velocity of 58 rad/s. The wheel is run at that angular velocity for 21s and then power is shut off. The wheel slows down at 2.4rad/s^2 until it stops. </span>
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