Grade 12th passMechanics

1 a flywheel rotating about fix axis has a kinetic energy of 360 joule when it angular speed 30 Radian per second the moment of inertia of wheel

Omveer Ahlawat

6 Years agoGrade 12th pass

2 Answers

Vikas TU

6 Years ago

Hiii
Moment of Inertia = Mr^2
omega = 30 radian , and kinetic energy = 360 joule
Rotational KE = ½ * I * W^2 ( W = omega)

Put the value you will get

I = 12/15 = 0.80

Khimraj

6 Years ago

I = mrr

moment of inertia is equal to the product of mass and the square of the radius.

we know rotational kinetic energy = 1/2iww.

then given w= 30 rad and k.E = 360j

k.e= 1/2iww

360 = 1/2× i×30×30

i= 360×2÷30×30

I=12÷15

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1 a flywheel rotating about fix axis has a kinetic energy of 360 joule when it angular speed 30 Radian per second the moment of inertia of wheel

Omveer Ahlawat

2 Answers

Vikas TU

Khimraj

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