power as it relates to constant velocity but increasing speedby student1984 Tags: constant, force, instantaneous power, power, velocity 

#1
Nov111, 06:05 PM

P: 1

the questions I have are general questions regarding power and velocity
here are some relevant equations: P=Fv a) if the force required to keep an object in motion with a constant velocity does not depend on the speed of the object, does the power required to keep the object moving in at a constant velocity increase, decrease or remain the same with increasing speed? b) in actuality, the force required to keep a car moving with a constant velocity increases in magnitude with the square of the car's speed. Does the power required to keep the car moving with a constant velocity increase, decrease or remain the same with increasing speed? How does this result compare with the answer to question a? I'm assuming from that answer to part a is REMAIN THE SAME and part b is INCREASES WITH INCREASING SPEED. am i correct in my assumptions? 


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