To accelerate your car at a constant acceleration, the car's engine must:
A)develop ever-decreasing power
B)Maintain constant turning speed
C)develop ever increasing power
D)maintain a constant power output

Question

To accelerate your car at a constant acceleration, the car's engine must:
A)develop ever-decreasing power
B)Maintain constant turning speed
C)develop ever increasing power
D)maintain a constant power output

anonymous · Answer

@JFraser

anonymous · Answer

both B and D make sense

anonymous · Answer

lol i figured that much because they say maintain but idk where to go from there

anonymous · Answer

B is uniform circular motion where you'd have a constant centripetal acceleration and no tangential component

anonymous · Answer

D says constant power -> from engine

anonymous · Answer

B is not for the engine!!!!!!

so D is the answer!

anonymous · Answer

"B" is the case for the entire car.

anonymous · Answer

I don't understand that at all

anonymous · Answer

in "B",
the turning speed -> is for what? the car? -> then this is not the cause, it is the effect.
the cause for const acc is that the engine is providing a constant power output

anonymous · Answer

what is turning speed?

anonymous · Answer

if the car is taking a turn, then the speed at which it does this turning is the turning speed of the car!

anonymous · Answer

electric motors and generators have a turning speed. but a car in general would be "gas"

anonymous · Answer

oh lol that sounds legit

anonymous · Answer

electro is absolutely right................constant Power is the answer
coz:
P=Fdv
If P constant then F constant then accelration constant.

anonymous · Answer

acceleration*

anonymous · Answer

ok thanks a lot you guys

anonymous · Answer

yw

anonymous · Answer

Mention must