Posted by **Mike Joseph** on Saturday, June 16, 2012 at 5:21pm.

If the car is traveling at 98 km/h, will a friction force be required? If so, in what direction?

How much friction force will be required?

Confused. May someone walk me through this problem step by step. Thank you

- Physics Vehicle application -
**Elena**, Sunday, June 17, 2012 at 8:13am
If this problem is the second part of the problem from your previous post, then

ΣFy = N• cos θ − mg − f •sin θ = 0

ΣFx = N• sin θ + f •cos θ = m•v²/R,

where f –friction force

Solving the 1st equation for N, we obtain

N =( f •sin θ + m•g)/cos θ,

Substitute N to the 2nd equation and obtain friction force

f =m[(v²•cosθ/R) - g•sinθ].

## Answer This Question

## Related Questions

- Physics - A 1400-kg car rounds a curve of 57-m banked at an angle of 14 degrees...
- Physics of Vehichle - A 1400 kg car rounds a curve of 57 m banked at an angle ...
- physics - a 2400-lb (=10.7-kn)car traveling at 30 mi/h (=13.4m/s)attempts to ...
- Physics - A 1400 kg car rounds a curve of 57 m banked at an angle of 14 degree ...
- physics - A 2100 kg car rounds a curve of 67 m banked at an angle of 13. If the ...
- Physics - A car is traveling around a bend at a speed of 12.4 m/s. The bend has ...
- Physics - The co-efficient for static friction for a 5 kg box on a floor is .72...
- physics - How much friction force will be required if a car weighing 2100kg ...
- Physics-forces - 1. Salim has a paper route. He puts his papers on a toboggan to...
- physics-forces - 1. Salim has a paper route. He puts his papers on a toboggan to...

More Related Questions