Chapter 1, Problem 1.78SP

Interpretation Introduction

Interpretation:

Among $1400\text{kg}$ car and $12000\text{kg}$ truck the one that has more kinetic energy is to be determined.

Concept introduction:

Energy generally exists in two forms: kinetic energy and potential energy.

Kinetic energy is the energy that is resultant of motion an object. It is given by the formula as follows:

$\text{kinetic energy}=\left(\frac{1}{2}\right)\left(\text{mass}\right){\left(\text{velocity}\right)}^2$

Kinetic energy is directly linked to mass and velocity.

Potential energy is energy that is resultant of position an object. It is given by the formula as follows:

$\text{potential energy}=\left(\text{mass}\right)\left(\text{accelaration}\right)\left(\text{height}\right)$

Potential energy is directly linked to the mass, acceleration and object’s height.