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jake walsh

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Member advised to use the homework template for posts in the homework sections of PF.

I have been struggling to understand how to do this question so some guidance would be great.

A racing car of mass 941kg accelerates from 28km/h to 102km/h over a distance of 297m. Frictional forces and wind resistance can be assumed to be 1160N.

Determine the following:

a) The average acceleration

b) The time taken to accelerate from 28km/h to 102km/h

c)The tractive force produced by the car to provide this acceleration

d)The car finally reaches a speed of 212km/h. Friction and wind resistance are 2761 at this speed. What power output is required to maintain this speed?

I have been playing around with equations and numbers and have just got myself really confused now, any help would be greatly appreciated.

This is my attempt:

A racing car of mass 941kg accelerates from 28km/h to 102km/h over a distance of 297m. Frictional forces and wind resistance can be assumed to be 1160N.

Determine the following:

a) The average acceleration

b) The time taken to accelerate from 28km/h to 102km/h

c)The tractive force produced by the car to provide this acceleration

d)The car finally reaches a speed of 212km/h. Friction and wind resistance are 2761 at this speed. What power output is required to maintain this speed?

I have been playing around with equations and numbers and have just got myself really confused now, any help would be greatly appreciated.

This is my attempt:

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