Question

a boy waiting 40 kg makes high jump of 1.5 m first what is the his kinetic energy at the highest point second what is his potential energy at the highest point

Answer 1

Given A boy waiting 40 kg makes high jump of 1.5 m first to find kinetic energy at the highest point and potential energy at the highest point.

Given m = 40 kg, h = 1.5 m, g = 9.8 m / s^2

Kinetic energy = 1/2 m v^2

At the highest point, velocity will be zero, so kinetic energy will be zero.

Potential energy = m g h

                          = 40 x 9.8 x 1.4

                        = 588 Joules.

So kinetic energy is zero and potential energy is 588 Joules.

 

Answer 2

Answer:

600J

Explanation:

POTENTIAL ENERGY =mgh

m=40kg

h=1.5m

g=10m/$s^{2}$

potential energy =40*1.5*10 =600J