Question

An object of mass 12 kg is at a certain height above ground. Of the potential energy of the object is 480j , find the height at which the object is with respect to the ground. Given,g= 10 m s

Answer 1

Answer:

4m

Explanation:

Given:

Mass of the object = 12kg

It's Potential Energy= 480J

Let it's height be = h

Potential Energy of an object = m × g × h

=> 12kg × 10m/s² × h = 480J

=> 120kgm/s² × h = 480kgm²/s² (J = kgm²/s²)

=> h = 480kgm²/s² ÷ 120kgm/s²

=> h = 4m (ans)

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