Question

to
An object of mass 40 kg is raised to a hecht of 5 m above the
ground. What is its potential energy the object is allowed to
fall find its kenitic energy when it is half-way down.​

Answer 1

Answer:

PE = mgH = 40 × 10 × 5 =2kJ

KE

PE* = mgH/2 = 1KJ

TE = mgH = 2KJ

KE = 2-1 = 1KJ