Question

Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s

Answer 1

Answer:

KE = 1/2 (2900)*55= 79750J

Explanation:

Answer 2

Given,

Mass of a truck = 2900 Kg

Velocity of the truck = 55 m/s

To find,

The kinetic energy of the truck.

Solution,

We can simply solve this numerical problem by using the following process:

Mathematically,

The kinetic energy of a body

= 1/2 × (mass of the body) × (velocity)^2

Now, the kinetic energy of the truck

= 1/2 × (mass of the truck) × (velocity)^2

= 1/2 × 2900 Kg × (55 m/s)^2

= 43,86,250 J

= 4,386.25 kJ

Hence, the kinetic energy of the truck is equal to 4,386.25 kJ.