04 Mar '10 04:16>2 edits
I'm just stuck on a problem
the problem is asking for the power supplied by the motor at a certain time t.
The force the motor supplies is a function of time
F = F(t)
and
P = Fv
am I in the right ballpark for logic
F(t) = ma
a = F(t)/m = dv/dt
v= Int[(F(t)/m)dt] = v(t)
Then P(t) = v(t)* F(t)
??
The problem incorporates some pulleys and friction, but I didn't want to go into that if my logic is flawed from the get go.
the problem is asking for the power supplied by the motor at a certain time t.
The force the motor supplies is a function of time
F = F(t)
and
P = Fv
am I in the right ballpark for logic
F(t) = ma
a = F(t)/m = dv/dt
v= Int[(F(t)/m)dt] = v(t)
Then P(t) = v(t)* F(t)
??
The problem incorporates some pulleys and friction, but I didn't want to go into that if my logic is flawed from the get go.