A7 kg box slides down a long, frictionless incline of angle 28° . it starts from rest at time t = 0 at the top of the incline at a height 27 m above the ground. what is the original potential energy of the box relative to the ground? the acceleration due to gravity is 9.81 m/s 2 . answer in units of j.

Original potential energy will be 1852.2 J

Explanation:

We have given mass of the box m = 7 kg

Height from the ground h = 27 m

Acceleration due to gravity

We have to find the original potential energy

We know that potential energy is given by

So original potential energy will be 1852.2 J

your answer would be fusion

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.