Question

A body of mass 20 kg is raised up to a certain height due to which the
energy gained by it is 1960 J. Find out the height.​

Answer 1

Answer:

5..

Step-by-step explanation:

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Answer 2

Answer :-

• The height at which the body is 10 m.

Given :-

• Mass of the body = 20 kg
• Energy gained = 1960 J

To find :-

• Height

Solution :-

The body is at a point above the ground level. The energy possessed by it is GRAVITATIONAL POTENTIAL ENERGY.

$\boxed{\sf{PE_g = mgh}}$

• m = 20 kg
• g = 9.8 m/s²
• h = ??

$\mapsto{\rm{1960 = 20 \times 9.8 \times h}}$

$\mapsto{\rm{1960 =196h}}$

$\mapsto{\rm{h = \dfrac{1960}{196}}}$

$\blue{\underline{\boxed{\mapsto{\rm{h = 10 \: m}}}}}$

Therefore, the height at which the body is 10 m.