Question

1. what is the kinetic energy of a 2,000 kg car moving at 10 m/s? 100,000 j 20,000 j 10,000 j 200,000 j

Explanation:

Step1: Recall the kinetic energy formula

The formula for kinetic energy is \(KE=\frac{1}{2}mv^{2}\), where \(m\) is the mass and \(v\) is the velocity.

Step2: Substitute the given values

Given \(m = 2000\space kg\) and \(v=10\space m/s\). Substitute into the formula: \(KE=\frac{1}{2}\times2000\times(10)^{2}\).
First, calculate \((10)^{2}=100\). Then \(\frac{1}{2}\times2000 = 1000\).
Finally, \(KE=1000\times100=100000\space J\).

Answer:

100,000 J