Here i go Again, Phy 11 Forces

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The discussion revolves around calculating the acceleration, final velocity, and distance traveled by a 1500kg car experiencing air resistance and road friction. The user successfully determined the car's acceleration to be 3 m/s² using the net force divided by mass. They converted the initial velocity from 72 km/h to m/s but encountered difficulties in calculating the final velocity and distance. Participants encouraged the user to apply the known values in the appropriate equations for these calculations. The conversation emphasizes the importance of correctly applying physics formulas to solve the problem.
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Homework Statement



A 1500kg car traveling at 72km/h experiances an air reistance of 2000N and a road Friction of 1500N, if the wheels push with a force of 8000N find the Cars Acceleration, cars velocity after 35 seconds and Distance traveled in 1 minute.

Homework Equations



M= 1500kg Fa= 8000 Vi=72km/h.. that's all i figured out, Ffriction is 2000+1500??

The Attempt at a Solution


uhmmm i found out Acceleration is 3 m/s(squared) because i did (Fnet/m)=a
which was 4500/1500 =3 (8000-3500)/1500
 
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Good job finding the acceleration! Now, what have you tried for the other problems?
 
jgens said:
Good job finding the acceleration! Now, what have you tried for the other problems?

uhh
i used the formula vf=vi+at and converted the 72km/h to the units m/s
and I am stuck there
 
Well, you know the acceleration, time, and initial velocity so you should easily be able to solve for the final velocity. What's tripping you up?
 

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