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24. The tires of a car make 80 revolutions as the car reduces its speed from 90kph to 60kph. the tires have a diameter of 0.8m. If the car continues to decelerate at this rate, how much more time is required for it to stop? a. 28.95 s b. 12.44 s c. 19.30 s d. 21.49 s

24. The tires of a car make 80 revolutions as the car reduces its speed from 90kph to 60kph. the tires have a diameter of 0.8m. If the car continues to decelerate at this rate, how much more time is required for it to stop? a. 28.95 s b. 12.44 s c. 19.30 s d. 21.49 s

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8. SITUATIONAL QUESTION At t = 0, a grinding wheel has an angular velocity of 25 rad/s. It has a constant angular acceleration of 32 rad/s2 until a circuit breaker trips at t = 2.5 seconds. From then on, it turns through 423 rad as it coasts to a stop at constant angular acceleration. 24. The tires of a car make 80 revolutions as the car reduces its speed from 90kph to 60kph. the tires have a diameter of 0.8m. If the car continues to decelerate at this rate, how much more time is required. for it to stop? a. 28.95 s b. 12.44 s c. 19.30 s d. 21.49 s
Transcribed Image Text:8. SITUATIONAL QUESTION At t = 0, a grinding wheel has an angular velocity of 25 rad/s. It has a constant angular acceleration of 32 rad/s2 until a circuit breaker trips at t = 2.5 seconds. From then on, it turns through 423 rad as it coasts to a stop at constant angular acceleration. 24. The tires of a car make 80 revolutions as the car reduces its speed from 90kph to 60kph. the tires have a diameter of 0.8m. If the car continues to decelerate at this rate, how much more time is required. for it to stop? a. 28.95 s b. 12.44 s c. 19.30 s d. 21.49 s
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