Question

How much kinetic energy does an object have that is moving at a rate of 30 m/s and has a mass of 4000 kg ?

Answer 1

K = 1800 kJ

Step-by-step explanation:

Given that,

The speed of the object, v = 30 m/s

Mass of the object, m = 4000 kg

We need to find the kinetic energy of the object. The formula for the kinetic energy is given by :

`K=(1)/(2)mv^2\\\\K=(1)/(2)* 4000* 30^2\\\\K=1800000\\\\or\\\\K=1800\ kJ`

So, the required kinetic energy is equal to 1800 kJ.