Asked by Rosie
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?
a) 9.7 m/s ?
b)?
a) 9.7 m/s ?
b)?
Answers
Answered by
bobpursley
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.
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.
Answered by
Rosie
thank you
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