Eli went for his driving test in an ice storm. He told the registry tester not to worry. He can negotiate an exit ramp at 35 km/hr that has a radius of curvature of 95m. a) What was his speed in meter/second? b)Find required angle for his banked curve to handle an ice filled road without the car slipping?

Question

a) 9.7 m/s ?
b)?

Answer 1

draw the figure.
up the ramp, the centriptetal force is v^2/r * cosTheta
down the ramp gravity=mg*sinTheta

mg*sintheta=mv^2/r * cosTheta
tantheta= v^2/rg

check that.

Answer 2

thank you