Hey someone give me the answers pls

B1 and A2

Explanation:

the first one would be B because put 4 into mass times it by the velocity divide it by half because of the radius so the ending result would be 4

number 2 would be  A because just input the numbers by the mass, velocity etc.) then any number  that needs to be divided for an example radius would have to divide so you divide to get the answer.

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .