Question

The kinetic energy of a body is 3J and its moment of inertia is 6kgm2

. Then its angular

momentum will be​

Answer 1

Answer:

95 kilo hz will be your answer

Explanation:

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Answer 2

Given:

The kinetic energy of a body is equal to 3J

Its moment of inertia is equal to 6$kgm^2$

To Find:

Its angular momentum.

Solution:

We know that the kinetic energy of a rotating body is

   $K=\frac{1}{2}Iw^2$

where $I$ is the moment of inertia of the body and $w$ is the angular velocity of the body.

⇒ $K=\frac{(Iw)^2}{2I}$

⇒ $K=\frac{l^2}{2I}$

where $l=Iw$ is the angular momentum of the body

⇒ $l=\sqrt{2IK}$

⇒ $l=\sqrt{2*6*3}$

⇒ $l=6kgm^2/s$

Hence, the angular momentum of the body is equal to $6kgm^2/s$.