Asked by Nicole

A 1.761 km car is moving down a road with a slope (grade) of 12% at a constant direction and magnitude of the frictional force?

Please show step by step if possible, I am extremely lost! Thanks!
Answered by bobpursley
constant speed? that means the force of gravity down the slope is exactly equal to the force of friction, so the gravity force down the slope is...

mgSinTheta
Answered by Nicole
I'm sorry, I wrote the question wrong! Correctly, the questions reads:
A 1.761 km car is moving down a slope of 12% at a constant velocity of 17 m/s. What I'd the direction and magnitude of the frictional force?

Again, sorry!
Answered by bobpursley
the fricioal force is upward. it's magnitude is equal to the quantity I specifid.
Answered by Nicole
great, thanks so much!
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