Question

What's the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20m/s?

Answer 1

Ek = 6KJ.

In physics, the kinetic energy of a body or object is the one that owns due to its movement and is given by the equation $E_{k} = \frac{1}{2} mv^{2}$, where m is the mass of the object in kilograms and v is the velocity in m/s.

An object that it has a mass of 30 kilograms and moves with a velocity of 20m/s, its kinetic energy is given by:

$E_{k} = \frac{1}{2} (30kg)(20m/s)^{2}=6000J=6KJ$