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BECE Science 2021 Paper

Question : 23

Total: 40

g = 10\,\mathrm{m}\,\mathrm{s}^{-2}

Solution:

Concept:

Gravitational potential energy is the energy stored in an object due to its height above the ground.

Explanation:

The formula for potential energy is

\text{P.E} = mgh

Here, mass

m = 2\,\mathrm{kg}

, height

h = 10\,\mathrm{m}

, and

g = 10\,\mathrm{m}\,\mathrm{s}^{-2}

Substitute the values:

\text{P.E} = 2 \times 10 \times 10

\text{P.E} = 200\,\mathrm{J}

Answer:

The potential energy of the block is

200\,\mathrm{J}

Correct option: D.

\;200\,\mathrm{J}

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