The acceleration should be a gain of 2 km/h per second
Let's assume that ground level is the height 0 meters. The change in potential energy is going to be gravitational potential energy, which is given by PE=mgh.
ΔPE=mgh-mgy
=mg(h-y)
=50(28-0)
=1400 J
We can use renewable sources
Explanation:
Gravitational potential energy = mgh = (5)(9.81)(7) = 343.35J.