Question

A 2 kg mass is held 4m above the ground , give potential energy with respect to ground

Answer 1

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$Given,\\Mass = m = 2 \ kg\\Height = h = 4 \ m\\Acceleration = g = 9.8 \ m/s^2\\\\We \ know,\\P.E = mgh\\P.E = 2\times 9.8 \times 4\\\boxed{\boxed{\bold{P.E = 78.4 \ J}}}$

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Answer 2

Heya

Mass of the object = 2kg

Height = 4m

g = 9.8m/s

Potential energy is given by mgh

Potential energy of the object = 2×4×9.8

=78.4J

Hope it helps