kroman932 kroman932
  • 03-04-2020
  • Physics
contestada

A 60 kg runner has 1500 J of kinetic energy. How fast is he moving?

Respuesta :

thamimspartan thamimspartan
  • 08-04-2020

The speed with which runner is running is 7.07m/s

Explanation:

Given:

Mass, m = 60kg

Kinetic energy, KE = 1500J

Velocity, v = ?

We know,

Kinetic energy = [tex]\frac{1}{2} mv^2[/tex]

On substituting the value we get,

[tex]1500 = \frac{1}{2} X 60 X v^2\\\\v^2 = 50\\\\v = 7.07 m/s[/tex]

Therefore, the speed with which runner is running is 7.07m/s

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