How Do You Calculate Forces on a Parked Car on an Incline?

[xiaoren]

A Toyota Vios (m = 1700 kg) is parked on a road that rises 15° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires?

 

[Redbelly98]

A problem like this starts with you, the student, drawing a free-body diagram, showing all forces acting on the object.

 

[xiaoren]

i have solve the part a... but i dun know the part b... please show me plaeseeee

 

[rl.bhat]

Show your calculation of the part (a).

 

[darkmagic]

friction is normal force times the coefficient

 

[xiaoren]

the part a is 1700(9.81)cos15=16108.7N
but the coefficient of stataic is not given...how i can solve the problem for part b

 

[Redbelly98]

Draw the free-body diagram. You won't need the coefficient of friction for this.

Also, what is the acceleration of the car?