SOLUTION: PLEASE HELP!!!!!!!!!! Motorcyclist with a total mass 320 kg stops from a velocity of 36km/h in 25 s without braking. The same motorcyclist accelerates in the same conditions fro

Question 408134: PLEASE HELP!!!!!!!!!!
Motorcyclist with a total mass 320 kg stops from a velocity of 36km/h in 25 s without braking.
The same motorcyclist accelerates in the same conditions from full stop to velocity of 126km/h in 6 s. Calculate the constant forward carrying force of the engine, if the forces restricting the motion remain constant. Give the answer in 1 N precision
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

You can calculate the force restricting motion from the first part of the question, where he slows down without braking.

First convert the given speed to :
}

= ?
=?

So there is a force motion with a magnitude of . Next calculate his :

=?
=?

Now calculate the to give him this , remembering that there's a resistive force in play which we'll call :

So the engine supplies a carrying force of .
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