Question

1. a bowling ball has a mass of about 2.85 kg. suppose the ball is rolled down the lane with a speed of about 6.0 m/s. what is its energy?

Explanation:

Step1: Identify the formula

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

Step2: Substitute the values

Given $m = 2.85\space kg$ and $v=6.0\space m/s$. Substitute into the formula: $K.E.=\frac{1}{2}\times2.85\times(6.0)^{2}$.

Step3: Calculate

First, calculate $(6.0)^{2}=36$. Then $\frac{1}{2}\times2.85\times36 = 1.425\times36$.
$1.425\times36=(1 + 0.425)\times36=36+15.3 = 51.3$.

Answer:

$51.3\space J$