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A body of moment of inertia of 3 kgm2 rotating with an angular velocity of 2rad/s has the same kinetic energy as a mass of 12 kg moving with a velocity of (a) 1 m/s (b) 2 m/s (c) 4 m/s (d) 8 m/s

A body of moment of inertia of 3 kgm2 rotating with an angular velocity of 2rad/s has the same kinetic energy as a mass of 12 kg moving with a velocity of
(a) 1 m/s (b) 2 m/s
(c) 4 m/s (d) 8 m/s

Grade:Upto college level

2 Answers

Saurabh Koranglekar
askIITians Faculty 10341 Points
11 months ago
576-200_1.PNG
Vikas TU
14149 Points
11 months ago
0.5 * 5 * 6^2 = 0.5 * 20 * v^2 
v^2 = 9 
v =3 m/s
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