Question

1. what is the kinetic energy of a 0.38 kg soccer ball that is traveling at a speed of 120 m/s?

Explanation:

Step1: Write the formula for kinetic energy

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

Step2: Substitute the given values into the formula

Given \(m = 0.38\space kg\) and \(v=120\space m/s\).
Substitute into \(K.E.=\frac{1}{2}\times0.38\times(120)^{2}\)
First calculate \((120)^{2}=14400\)
Then \(\frac{1}{2}\times0.38\times14400 = 0.19\times14400\)

Step3: Calculate the final result

\(0.19\times14400 = 2736\space J\)

Answer:

\(2736\space J\)