volume_mute

Impact on kinetic energy if velocity is changed

publish date: 2023/07/04 11:39:00 GMT+10

volume_mute

Given the Kinetic Energy equation (KE)

$KE=\frac12mv^2$

The kinetic energy of an object will be _________ if its velocity is tripled.

 

8 times
9 times
10 times

Correct Answer

9 times

Explanation

It would be nine times as great (32 = 9)

Reference

Basic Physics: A Self-Teaching Guide

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