Question

33. A girl jumping over a 1 m long rope with a 3 kg ball tied on the end. The ball has a speed of 3 m/s. What is the ball's
centripetal force?

Answer 1

Answer:

Therefore the ball's centripetal force is 27 Newton.

Explanation:

Given:

let

radius be the length of long rope = 1 m

mass of ball = 3 kg

velocity = v = 3 m/s

To Find:

ball's  centripetal force = ?

Solution:

Centripetal force:

A force that acts on a body moving in a circular path and is directed towards the center around which the body is moving is called as Centripetal force.

Formula is given as

$F_{c}=\dfrac{mv^{2} }{r}$

$F_{c}$= Centripetal force

m = mass

r   = radius

So on substituting the given values we will get the centripetal force

$F_{c}=\dfrac{3(3)^{2} }{1}=\dfrac{27}{1}=27\ N$

Therefore the ball's centripetal force is 27 Newton.