Question

A motor vehicle has a mass of 1200 kg, and is traveling at a velocity of 70 km/hours to the Southeast. As it travels over a hill, it leaves the pavement and reaches a maximum height of 3 meters off the pavement. Calculate the vehicle's Gravitational Energy. *

Answer 1

Answer: 35280 J of Gravitational energy

Solution:

Given:

Mass of the vehicle,(m)=1200kg

`\text{acceleration due to gravity} (g)=9.8 m/s^2`

Maximum height reached,(h)= 3 m

Gravitational energy or gravitational potential energy can be calculated as;

`\text{gravitational energy}=mgh`

`\text{gravitational energy}=(1200 Kg)(9.8 m/s^2)(3 m)=35280 J`

Gravitational Energy = 35280 J