How much kinetic energy does a person of mass 50kg running at 3m/s have? provide
your answer in kj.

0.225 KJ kinetic energy is used for a person of mass 50 Kg running at speed of 3 m/s.

Explanation:

Given:

mass = 50 kg

velocity = v = 3 m/s

To Find :

Kinetic energy = ?

Solution:

Kinetic energy of an object is the energy that it possesses due to its motion.

The formula for kinetic energy is given as

But we required kinetic energy in KiloJoules i.e KJ

1 K = 1000 =

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach