# Please help me solve this physic problem

1. Jan 30, 2010

### 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?

2. Jan 30, 2010

### Redbelly98

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

3. Jan 30, 2010

### xiaoren

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

4. Jan 30, 2010

### rl.bhat

Show your calculation of the part (a).

5. Jan 30, 2010

### darkmagic

friction is normal force times the coefficient

6. Jan 30, 2010

### 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

7. Jan 30, 2010

### Redbelly98

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

Also, what is the acceleration of the car?

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