Answer:
Moment of inertia will be ![I=2kgm^2](https://tex.z-dn.net/?f=I%3D2kgm%5E2)
Explanation:
We have given mass of the person m = 72 kg
Radius r = 0.8 m
Force is given F = 5 N
Angular acceleration ![\alpha =2rad/sec^2](https://tex.z-dn.net/?f=%5Calpha%20%3D2rad%2Fsec%5E2)
Torque is given by ![\tau =F\times r=5\times 0.8=4N-m](https://tex.z-dn.net/?f=%5Ctau%20%3DF%5Ctimes%20r%3D5%5Ctimes%200.8%3D4N-m)
We know that torque is also given by
, here I is moment of inertia and
is angular acceleration
So ![4=I\times 2](https://tex.z-dn.net/?f=4%3DI%5Ctimes%202)
![I=2kgm^2](https://tex.z-dn.net/?f=I%3D2kgm%5E2)
Neutral reaction is the reaction that occurs when an acid cancels with a base
Answer:
Speed is a "scalar" quantity
(C) is the correct answer
An object could travel at 10 m/s to some point and then return to the origin at 10 m/s for an average speed of 10 m/s, however it's displacement over that time would be zero for a net velocity of zero.