Question

Which of the following is an expression of power?
A. J/s
B. N
C. N-m

Answer 1

joule is work
s is time in second
N is force
N-m is also work, equals 1 joule.

Power is work per unit time.

Answer 2

Thanks for the help :)

Answer 3

Power is like how much work can be done per second.

Answer 4

thanks