What will be the PE and KE at the highest point??​

"At the highest point kinetic energy is zero / maximum while the potential energy is zero / maximum. At the lowest point kinetic energy is zero / maximum while potential energy is zero / maximum. Mass affects / does not affect the amount of energy"

-g0ogle

Explanation:

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

happy to

pls mark as brainliest

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.