Calculate the height through which a body of mass 0.5 kg is lifted if the energy spent in doing so is 1.0 J. Take g = 10m/s-2. - Noon Academy

Calculate the height through which a body of mass 0.5 kg is lifted if the energy spent in doing so is 1.0 J. Take g = 10m/s^-2.

Class 10 | ICSE | Physics | Selina | Work Energy

Calculate the height through which a body of mass 0.5 kg is lifted if the energy spent in doing so is 1.0 J. Take g = 10m/s^-2.

Solutions:

According to the question –

Mass is 0.5 kg

Energy is 1 J

Expression for gravitational potential energy is mgh

Therefore upon substituting the values, we get –

1 = 0.5 × 10 × h

à 1 = 5h

Or, h = 1 / 5

Thus, h = 0.2 m

i

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