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An energy of 484 J is spent in increasin...

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.

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To find the moment of inertia of the flywheel, we can follow these steps: ### Step 1: Understand the Energy Change The energy spent in increasing the speed of the flywheel is converted into rotational kinetic energy. The change in kinetic energy (ΔKE) is equal to the work done on the flywheel, which is given as 484 J. ### Step 2: Write the Formula for Rotational Kinetic Energy The rotational kinetic energy (KE) of a rotating object is given by the formula: \[ ...
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If 600J of energy is spent in increasing the speed of a wheel from 60 rpm to 240rpm the M.I.of the wheel is.[(pi^(2)=,10) (A) "2kgm^(2) (B) 3kgm^(2) (C) 4kgm^(2) (D) 5kgm^(2)

Knowledge Check

  • The angualr speed of a flywheel making 360 rpm is

    A
    `12 pi `
    B
    `6pi`
    C
    `3pi`
    D
    `2pi`

  • The angular speed of a flywheel rotating at 90 r.p.m . Is

    A
    `pi ` rad/s
    B
    `2pi` rad/s
    C
    `4 pi ` rad/s
    D
    `3pi ` rad/s

  • When a 12000 joule of work is done on a flywheel, its frequency of rotation increases from 10 Hz to 20 Hz. The moment of inertia of flywheel about its axis of rotation is (pi^(2) = 10)

    A
    `1 kgm^(2)`
    B
    `2 kgm ^(2)`
    C
    `1.688 kgm^(2)`
    D
    `1.5 kgm^(2)`

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