Sand is deposited at a uniform rate of 20g/s and with negligeable kinetic energy unto an empty convergor belt moving horizontally at a constant speed of 10m/s. Calculate the force required to maintain the constant velocity?
1 Answer
Feb 25, 2018
This is a beautiful example where I can show you,how actually Newton's 2nd Law of motion acts.
So,from Newton's 2nd Law of motion,
Force is defined as rate of change in momentum,
i,e
In most of the cases,what happens mass of the object under consideration is fixed,so
But,see here,
so,here,required amount of force to maintain the constant velocity is