- #1

TT0

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^{-1}. Neglecting any friction, how much force will the engine have to supply to keep going the same speed?

**F = ma**

Since it is traveling at a constant speed then acceleration = 0 ms

^{-2}hence the answer is 0.

F = m x a

F = 1000 x 0

F = 0

My question is:

Firstly am I right?

And secondly why does everything have to be accelerating? If the car was traveling at a constant speed of 10ms

^{-1}and there was friction how would you calculate the force needed?