Question

What is the centripetal force needed to keep a 3.0kg mass moving in a circle of radius 0.50 m at a speed of 8.0m/s?

Answer 1

384N

Step-by-step explanation:

Given parameters:

Mass = 3kg

radius = 0.5m

Speed = 8m/s

Unknown:

Centripetal force = ?

Solution:

The centripetal force is the inward force that keeps a body in motion along a circular path.

It is mathematically expressed as;

F =
`(mv^(2) )/(r)`

m is the mass

v is the speed

r is the radius

Now insert the parameters and solve;

F =
`(3 x 8^(2) )/(0.5)` = 384N