Question

A boy of mass 40 kg is running at 1 m/s inside his classroom, which is on the second floor of his school. If each floor is 12 m above the one below find his (Take g -10 m/s2)
(i) kinetic energy (ii) Potential energy

Answer 1

Answer:

pe = mgh

=>>

pe = 40 x 10 x 12 x 2

=> pe= 400x24

and ke = 1/2×40×1²

=> 20 kgm/s

Explanation:

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