The triceps muscle in the back of the upper arm is primarily used to extend the forearm. suppose this muscle in a professional boxer exerts a force of 1.75 × 103 n with an effective perpendicular lever arm of 3.05 cm, producing an angular acceleration of the forearm of 115 rad/s2. what is the moment of inertia of the forearm, in kilogram meters squared?

To solve this problem it is necessary to apply the concepts related to Torque as a function of the Force and the distance radius where it is applied.

By definition the Torque can be expressed as

Where

F = Force exerted

r = Radius

Substituting we have to

Through the second definition of the rotational Torque we can then find the moment of inertia for which we have to

Where

I = Moment of inertia

Angular acceleration

Replacing

Therefore the moment of inertia is

you cant move and you feel like someones pushing you down onto your bed it can feel like you want to get up but you just can't it can be extremely scary

newton's first law of motion