Home
Class 11
PHYSICS
An energy of 484 J is spend in increasi...

An energy of 484 J is spend in increasing the speed of a flywheel from 60 rpm to 360 rpm. Calculate moment of inertia of flywheel.

A

`1.6kgm^(2)`

B

`0.3kgm^(2)`

C

`0.7kgm^(2)`

D

`1.2kgm^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

An energy of 484 J is spent in increasing the speed of a flywheel from 60 rpm to 360 rpm. Calculate moment of inertia of flywheel.

A fly wheel is rotating at a speed of 160 r.p.m. whose weight is 20 kg and its centre of mass at a distance of 0.01 m from the axis of rotation. Calculate : moment of inertial of the fly wheel.

The flywheel of a gasoline engine is required to give up 300 J of kinetic energy while its angular velocity decreases from 600 rev min^(-1) to 540 rev. min^(-1) . What is the moment of inertia of the flywheel ?

A horizontal disc rotating freely about a vertical axis makes 100 rpm. A small piece of wax of mass 10 g falls vertically on the disc and adheres to it at a distance of 9 cm from the axis if the number of revolution per minute is thereby reduced to 90. Calculate the moment of inertia of disc.

The number of revolutions made by a flywheel change from 300 rpm to 1500 rpm in 10 s. Calculate angular acceleration assuming it to be uniform. Also calculate the number of revoluations made during the time.

Calculate the angular speed of flywheel making 420 revolutions per minute.

A flywheel of mass 0.2 kg and radius 10 cm is rotating with 5/pi (rev)/s about an axis perpendicular to its plane passing through its centre. Calculate angular momentum and kinetic energy of flywheel.

A disc is made to rotate about a vertical axis at the rate of 300 rpm. A small piece of putty of mass 5 g falls vertically on the disc at a distance of 4 cm from the axis. Now the number of revolutions per minute is reduced to 240 rpm. What is the moment of inertia of the disc?

A flywheel rotating about a fixed axis has a kinetic energy of 360J when its angular speed is 30 radian s^(-1) . The moment of inertia of the wheel about the axis of rotation is

When a constant torque is applied to a flywheel at rest it angular velocity increases by 10 rad/s in 2 s: Calculate the torque applied if the moment of inertia of the flywheel about the axis of rotation is 200 kg m^(2) .