Question

A body of mass 2 ky is projectec vertically upwards it reaches a height of 0.4 m The KE. oi the body jus: befon
striding the ground is

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Answer 1

Answer:

the KE is the minimum when it is striding the ground

Answer 2

Given mass of the body = 2 kg

maximum height reached by the body = 0.4 m

we know that

at the maximum height pottential energy is maximum.

and it is equal the the kinetic energy when the body is about to touch ground.

so,

Kinetic energy = mgh

= 2 × 10 × 0.4

KE = 8 J