What does "Position (m)” represent in the graph? the x-axis
a direct relationship
the independent variable
the dependent variable

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.