Jack and Jill went up the hill to fetch a pail of water. Each
carried a pail of equal mass. Jill climbed the hill in 25 seconds
while Jack took only 20 seconds. What was different about the job
they did?
A) They both did the same amount of work but Jill
exerted more power
B) They both did the same amount of work but Jack
exerted more power.
C) Jill did more work and exerted more
power.
D) Jack did more work and exerted more power
E) Jack did more work but Jill exerted more
power.