| Topic: |
Science > Physics |
| User: |
"" |
| Date: |
24 May 2007 11:22:48 AM |
| Object: |
Help plz..coeffecient of friciton question |
Can some1 plz help me out..tryin to revise for a test but cnt figure
this out.
a car has a mass of 1400kg and its travelling up an incline of
theta.The coeffecient of friction between th tires and th road is
0.12.Determine the maximum gradient the car can go up at constant
speed if it has
1) rear wheel drive
2)front wheel drive
3)four wheel drive
centre of gravity of the car is 0.5m above the road and the wheel
base(distance between two wheels is 4 m...( 2m on each side from th
centre of gravity)
.
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| User: "PD" |
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| Title: Re: Help plz..coeffecient of friciton question |
24 May 2007 01:20:07 PM |
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On May 24, 11:22 am, wrote:
Can some1 plz help me out..tryin to revise for a test but cnt figure
this out.
a car has a mass of 1400kg and its travelling up an incline of
theta.The coeffecient of friction between th tires and th road is
0.12.Determine the maximum gradient the car can go up at constant
speed if it has
1) rear wheel drive
2)front wheel drive
3)four wheel drive
centre of gravity of the car is 0.5m above the road and the wheel
base(distance between two wheels is 4 m...( 2m on each side from th
centre of gravity)
You haven't said where you get stuck.
If you don't know where to start, then consider that the friction that
helps get the car up the hill is applied only at the wheels where
there is drive. Now draw a force diagram with the forces drawn *where
they act*, and then sum forces and torques.
PD
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