How high must you lift a 25-newton book for it to have the same increase in potential energy as a 20-newton book that was lifted 0.5 m

The increase in gravitational potential energy of the 20-newton book is 10 J (20 N • 0.5 m = 10 J). The 25-newton book must be lifted to a height of 0.4 m to have an increase in gravitational potential energy of 10 J (25 N • 0.4 m = 10 J).

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!