Chapter 11, Problem 40A

To determine

Kinetic energy of car.

Answer to Problem 40A

Kinetic energy of car is $1.25\times {10}^5\text{J}$

Explanation of Solution

Given:

Mass of car is $m=1600\text{kg}$ .

Velocity of car is $v=12.5\text{m/s}$ .

Formula Used:

Kinetic energy $\text{KE}=\frac{1}{2}m{v}^2$

Where, m is the mass and vis the velocity.

Calculation:

On putting the given values:

  $\begin{array}{l}\text{KE}=\frac{1}{2}\times 1600\times {\left(12.5\right)}^2\\ =1.25\times {10}^5\text{J}\end{array}$