# The angular speed of an automobile engine is increased at a constant rate from 982 rev/min to 3230 rev/min in 5.06 s. (a) What is its angular acceleration in revolutions per minute-squared? (b) How many revolutions does the engine make during this 5.06 s interval?

Question

The angular speed of an automobile engine is increased at a constant rate from 982 rev/min to 3230 rev/min in 5.06 s. (a) What is its angular acceleration in revolutions per minute-squared? (b) How many revolutions does the engine make during this 5.06 s interval?

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Step 1

Given information:

Step 2

Here, ωi and ωf  are the initial and final angular velocities of an automobile and t is the time taken to increase the angular velocity from initial to final.

a)

Write the formula for the angular acceleration, α and plug the required values to find α.

Step 3
1. b)

Write the analog of newton’s equation of motion to calcul...

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### Angular Motion 