Question

a boy of mass 40 kg is running at 1 metre per second inside his classroom which is on the second floor of a school in if each floor is 12 metres above the one below it find his kinetic energy and potential energy​

Answer 1

kinetic energy=1/2mv square

                       =1/2*40*1

                       =20 J

potential energy​=mgh

                          =40*12

                          =480J

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