Question

A ring of radius 0.5 m and mass 10 kg is rotating about it's diameter owoth an angular velocity of 20 rad/ s .it's kinetic energy is​

Answer 1

Answer:

Given-

radius = 0.5 m

mass = 10kg

angular velocity = 20 rad/sec

Solution -

Step 1

V =rw (w = angular velocity)

V =0.5×20

V = 10 m/s (V = linear velocity)

Step 2

K.E = 1/2mV²

= 1/2×10×100

K.E = 500 J.

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