Calculate the torque developed by ann airplane engine whose output is `2000 HP` at an angular velocity of `2400 rev//min`.

(a) Compute the torque developed by an automotive engine whose output is 180 kW at an angular velocity of 4000rev/min. (b)A drum of negligible mass, 0.min diameter, is attached to the motorshaft,and the powerout put of the motor is used to raise a weight hanging from a rope wrapped around the drum. How large a weight can be liftd? Assume contant speed(c) With with what speed will the weigh rise?

The motor of an engine is erotating about its axis with an angular velocity of 100 rev/minute. It comes to rest in 15 s, after being switched off. Assumgn cnstant angular decelertion, calculate the number of revolutions made by it before coming to rest.

Calculate the instantenous power of a wheel rotating with an angular velocity of 20"rad"//s , when a torque of 10Nm is applied to it.

Calculate the instantenous power of a wheel rotating with an angular velocity of 20"rad"//s , when a torque of 10Nm is applied to it.

Calculate the instantenous power of a wheel rotating with an angular velocity of 20"rad"//s , when a torque of 10Nm is applied to it.

A griding stone in the form of a solid cylinder has a radius of 0.5 m and a mass 50 kg . Find What torque will bring it from rest to an angular velocity of 300 rev/min in 10 s ? (b) What is the kinetic energy when it is rotating at 300 rev/min ?

A grind-stone is in the form of a solid cylinder has a radius of 0.5 m and a mass 50 kg. What torque will bring it from rest to an angular velocity of 300 rev/min in 10 s ? What is the kinetic energy when it is rotating at 300 rev/min ?

A grind-stone is in the form of a solid cylinder has a radius of 0.5 m and a mass 50 kg. What torque will bring it from rest to an angular velocity of 300 rev/min in 10 s ? What is the kinetic energy when it is rotating at 300 rev/min ?

Starting from rest a centrifuge accelerates uniformly at the rate of 40 "rad"//s"^2 . What is the number of revolutions made by it when its angular velocity becomes 1800 rev/min ?