Question

A fly wheel rotating about a fixed axis has a kinetic energy of 360J ;when it's angular speed is 30 rad/s calculate it's moment of inertia​

Answer 1

Answer:

kinetic Energy of rotating body=1/2Iω²

GIVEN:

k.E.=360J

ω=30rad/s

To calculate:inertia

Explanation:simply use the formula

0.5×i×30²=360

i=360÷(0.5×30×30)

after calculation we get i=0.8kg m²

Answer 2

Answer:

0.8kg is your answer mate ok