Calculate the torque exerted by the car around the back wheels

minikk
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Homework Statement



A mechanic jacks up a car to an angle of 10◦
with the horizontal in order to change the
front tires. The car is 3.08 m long and has a
mass of 1129 kg. Its center of mass is located
1.54 m from the front end. The rear wheels
are 0.4 m from the back end.
Calculate the torque exerted by the car
around the back wheels. The acceleration of
gravity is 9.81 m/s2 .
Answer in units of N · m.

Homework Equations



T=RF

The Attempt at a Solution



Basically, I don't know what the question is really asking... And how do i start?
 
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you might know if you do a little sketching :)
 
To solve this, I first used the units to work out that a= m* a/m, i.e. t=z/λ. This would allow you to determine the time duration within an interval section by section and then add this to the previous ones to obtain the age of the respective layer. However, this would require a constant thickness per year for each interval. However, since this is most likely not the case, my next consideration was that the age must be the integral of a 1/λ(z) function, which I cannot model.
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