Question

a flywheel rotating at 640 rev/min is brought to rest with a uniform deceleration of 2.0 rad/s 2. how many revolutions does it make before coming to rest?

Answer 1

184.7 revolutions before reaching rest

provided equation

Knowing that each revolution has a 2° angle and that each minute contains 60 seconds, convert revolutions per minute to angular speed (rad/s).

640 revolutions per minute equal 640 (rev/min) * 2 (rad/rev) * (1/60) (min/sec) = 67.04 rad/s.

The angle the flywheel sweeps during the deceleration of =xrevmin2radrev can be calculated using the motion equation below.

Once more, we may convert this to 184.7 rev by multiplying the number of revolutions by (1/2) (rev/rad).

How fast is an angle moving in physics?

The definition of angular speed is the rate at which the angular displacement changes. = t. where. t is the time, and is the angular displacement.

To know more about angular velocity visit:-

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