# A string is attached to the rear-view mirror of a car. A ball is hanging on the other end of the string. The c [Solved] The centripetal force is not an actual force.
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D.

Tension from the string hanging from rearview mirror
Gravity pulling the ball down
Centripetal force acting on the ball moving in a circular path and directs it toward the center

The centripetal force is not an actual force.
.

D.

Sum of all the forces which are directed toward the center of circle = m * v^2/r
In this problem, horizontal component of the tension is the force which is attracting the ball toward the center of the circle. This is why the horizontal component of the tension is equal to the centripetal force.

Net radial force = m * v^2/r
The centripetal force equation above is describing the relationship between the forces, which are directed toward the center of circle and the velocity of the object, and the radius of the circle.

The centripetal force is not an actual force.
.

Tension from the string hanging from rearview mirror
Gravity pulling the ball down
Centripetal force acting on the ball moving in a circular path and directs it toward the center

Tension from the string hanging from rearview mirror
Gravity pulling the ball down
Centripetal force acting on the ball moving in a circular path and directs it toward the center

Theres no friction because there is no other surface connected to the ball (string doesnt count)

The centripetal force is not an actual force.
.

Source(s): HL Physics Student

Hope I helped

This post is last updated on hrtanswers.com at Date : 1st of September – 2022