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Physics
Physics
Problem
Identify the correct expression for instantaneous power when a constant force
F
F
F
acts on a body moving at instantaneous speed
v
v
v
along the direction of the force. a)
P
=
1
2
F
v
P = \dfrac{1}{2}\,Fv
P
=
2
1
F
v
b)
P
=
2
F
v
P = 2Fv
P
=
2
F
v
c)
P
=
F
v
P = Fv
P
=
F
v
d)
P
=
F
v
sin
θ
P = Fv\,\sin\theta
P
=
F
v
sin
θ
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