# A parent pushes their child on a swing. The child has a mass of 21 kg and is traveling at 4.9...

## Question:

A parent pushes their child on a swing. The child has a mass of 21 kg and is traveling at 4.9 m/s at the bottom of the arc. If the swing is 2.7 m long (from seat to the crossbar where the chain connects), how many g's does the child feel at this point?

## Centripetal Acceleration:

For a body undergoing motion in a circular path the acceleration on the body acts towards the center and is known as centripetal acceleration. The value of this acceleration is the ratio of the square of velocity to the radius of the circular path.

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Given:

Velocity v = 4.9 m/s

Mass of the child m = 12 kg

Length of the swing l = 2.7 m

As the swing is attached to a rope, there will be a tension...

Centripetal Acceleration: Definition, Formula & Example

from

Chapter 19 / Lesson 6
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In this lesson, you will learn the meaning of the term centripetal acceleration, an equation to calculate it, and an example of how to use the equation. A short quiz will follow.