An object with a mass of 4 kg is moving at the inside of a circular loop of radi

Question

An object with a mass of 4 kg is moving at the inside of a circular loop of radius 4 m which is frictionless, like a roller cart. If the speed at the bottom of the loop is 34 m/s, what is the amount of the normal force at the top of the loop in Newtons? An object with a mass of 4 kg is moving at the inside of a circular loop of radius 4 m which is frictionless, like a roller cart. If the speed at the bottom of the loop is 34 m/s, what is the amount of the normal force at the top of the loop in Newtons?

Explanation / Answer

At the Apex or top point there is no net reaction on the object. At is point it is just touching the loop and not falling down. It's weight W= mg is just balance by the centripetal force F = mv^2/r.

So Fnet= 0 Newton at the top point.

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