A simplified model of the power P required to sustain the motion of an electric car at speed v experiencing nonzero drag can be modeled by the equation:
P = Av^2 + (B/v)
(where A and B are positive constants.)
(a) What speed vP minimizes power?
(b) What power does the speed in (a) require?
(c)...
A simplified model of the power P required to sustain the motion of an electric car at speed v experiencing nonzero drag can be modeled by the equation:
P = Av^2 + (B/v)
(where A and B are positive constants.)
(a) What speed vP minimizes power?
(b) What power does the speed in (a) require?
(c)...
A bird is flying at an altitude of 10m above you, his angular position from your point of view is changing at 0.5 rad · s^-1. How fast is the bird flying when he is directly above you?