Calculate the work needed for a bird of mass 120 g to fly to a height of 50 m from the surface of the Earth

Calculate the work needed for a bird of mass 120 g to fly to a height of 50 m from the surface of the Earth.

Expert Solution

Solution : Calculate the work needed for a bird of mass.

Formula, W = mgh

Since, m = 120 g = 0.12 kg ,g = 9.81 m/s ,h = 50 m

So, W = 0, 12 × 9 · 81 × 50 = 58.86 kg · m^2 · s−1

Then, 1 kg · m2 · s^{−1 }= 1 kJ.

and, W = 58, 86 kJ

Therefore the work needed for a bird of mass is 58, 86 kJ

SUN BUNRA answered 1 year ago

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