Question

(iD The kinetic energy and angular momentum of a body rotating
with constant angular velocity are E and L. What does
represent?
(a) Torque
(c) Moment of inertia
(b) Angular speed
(d) Linear momentum​

Answer 1

Answer:

(d) Linear momentum

Explanation:

is it right answer

Answer 2

Answer:

2E/L represents angular speed i.e.option(b).

Explanation:

First, let's see the formula of kinetic energy,

$K=\frac{1}{2}I\omega^2$                 (1)

Where,

K=kinetic energy

I=moment of inertia  of the body=mass of the body×square of distance from the axis of rotation

ω=angular velocity with which the body is moving

Now the formula of angular momentum is given as,

$L=I\omega$              (2)

Where,

L=angular momentum

Now as per the question,

$\frac{2E}{L}=\frac{2\times \frac{1}{2}I\omega^2}{I\omega}=\omega$

Hence,2E/L represents angular speed i.e.option(b).

Your question is incomplete, but most probably your full question was"The kinetic energy and angular momentum of a body rotating

with constant angular velocity are E and L. What does 2E/L represent?"