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# M1 Question(Driving Force f=ma)

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1. I'm stuck on a question.

A motorbike and it's rider have a combined mass of 570kg. If the motorbike travels along a straight horizontal road with an acceleration of 3ms^-2, whilst experiencing a resistive force of 135N, what is the driving force of the engine?

Any help will be much appreciated.

Thank you
2. F - R = m*a

F is the driving force
R is the resistive force
m is the mass
a is the acceleration

It's a simple case of putting the numbers in to the formula.
3. Driving Force- Resistive Force = ma

F - 135 = 570*3

F - 135 = 1710

F = 1845 N

Hope this helps!

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