A pulley 1 metre in diameter rotating at 600 rpm is brought to rest in 80s by a constant force of frication on its shaft. How many revolutions does it make before coming to rest ?

A shaft initially rotating at 1725 rpm is brought to rest uniformly in 20s. The number of revolutions that the shaft will make during this time is

A shaft initially rotating at 1725 rpm is brought to rest uniformly in 20s. The number of revolutions that the shaft will make during this time is

A dental drill accelerates from rest to 900 rpm in 2 sec . What is the angular acceleration ? How many revolutions does it makes in coming to full speed ?

The speed of a motor increases from 1200 rpm to 1800 rpm in 20 s . How many revolutions does it make during these second ?

The speed of a motor increases from 600 rpm to 1200 rpm in 20 s. What is the angular acceleration and how many revolution does it make during this time ?

The motor of an engine is rotating about its axis with an angular velocity of 100 rpm. It comes to rest in 15s , after being switched off. If angular deceleration is constant, what is the number to revolutions made by it before coming to rest ?

A fan is rotating with a speed of 450 rec/minute. After being switched off it comes to rest in 10s. Assuming constant angular deceleration, calculate the number of revolutions made by it before coming to rest.

The speed of a motor increase from 600 rpm to 1200 rpm in 20 seconds. What is its angular acceleration, and how many revolutions does it make during this time ?

A disc of moment of inrtia 20 kg . m^(2) is rotated about its transverse symmetry axis at 120 rpm by an electric motor of power 62.84 watts. When the motor is switched off, how many rotations does it complete before coming to rest ?