Homework Help: trig

Posted by ale on Wednesday, May 25, 2011 at 11:24am.

A 2000 pound car is parked on a street that makes an angle of 12* with the horizontal (think it's a street on a hill). a) find the magnitude of the force required to keep the car from rolling down the hill. b) Find the force perpendicular to the street.

trig - Henry, Thursday, May 26, 2011 at 7:59pm
mass = 2000lbs * 0.454kg/lb = 908kg.

Fc = mg = 908kg * 9.8N/kg = 8898.4N @
12deg.

a. Fp = 8898.4*sin(12) = 1850.4N. = Force parallel to the street = Force required to keep the car from roling down hill.

b. Fv = 8898.4 * cos12 = 8704N = Force
perpendicular to the street.

Answer this Question

Related Questions

trig. - A 2000 pound car is parked on a street that make an angle of 12 degrees ...
Physics - A car is parked on a cliff overlooking the ocean on an incline that ...
physics - A car is parked on a cliff overlooking the ocean on an incline that ...
physics - A car is parked on a cliff overlooking the ocean on an incline that ...
math - six cars are parked in front of a car dealership. If you are looking at ...
physics - A car is parked near a cliff overlooking the ocean on an incline that ...
physics - A car is parked on a cliff overlooking the ocean on an incline that ...
physics - A car is parked on a cliff overlooking the ocean on an incline that ...
physics - A car is parked on a cliff overlooking the ocean on an incline that ...
physics - A car is parked on a cliff overlooking the ocean on an incline that ...

For Further Reading

First Name:
School Subject:
Answer: