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Physics
Physics
Problem
Which of the following gives the correct mathematical relation for power
P
P
P
when a work
W
W
W
is done in time
t
t
t
? a)
P
=
2
W
t
P = \dfrac{2W}{t}
P
=
t
2
W
b)
P
=
60
W
t
P = \dfrac{60\,W}{t}
P
=
t
60
W
c)
P
=
W
2
t
P = \dfrac{W}{2t}
P
=
2
t
W
d)
P
=
W
t
P = \dfrac{W}{t}
P
=
t
W
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