12 18
24
30
Number of
books
Price ($)
B
50
56
62
66
12
24
48
96
Number of
books
Price ($)
C.
50
150
200
250
12
36
48
60
Number of
books
Price ($)
D
50
150
200
250
120
180
240
300
Number of
books
Price
($)
120
156
220
460

i done know sorry for not answering ur question

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 .

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.