I believe the answer is A) Less work in less time.
P=IV
V=IR
P=I(IR)
P=I²R
375=5²R
R=375/25
R=15
At 4 m/s?
How do the two kinetic energies compare to one another? QUADRUPLES !
#3 What is the kinetic energy of a 2,000 kg bus that is moving at 30 m/s?
Potential energy