The work done by the engine is equal to the gravitational potential energy (GPE) put into it. GPE = mgh
GPE = Work = 1200·9.81·13 = 153,036J
Your answer would be B love!
By putting an apple up on high ground. (That is 1 example)
This creates a higher gravitational force, and when it falls down it would have a lot of kinetic energy. But, if put on low ground, it wouldn't have enough potential energy to increase the kinetic energy.
Answer:
S=2.693m
Explanation:
Let point 
be the origin of the room and the fly is crawling at point 
as shown in the attached photo:
#Distance of the fly from the corner of the room is defined as:
#Substitute the coordinate values in the above equation:
Hence, the distance of the fly from the corner of the room is 2.693m
