The biker, who weighs W = 500 N, rides in a circle at speed 10 m/s, with the bic

Question

The biker, who weighs W = 500 N, rides in a circle at speed 10 m/s, with the bicycle banked at = 75°.

What is the normal force on the biker? (500N)sin75, (500N)cos75, 500N/sin75, or 500N/cos75?

Let N denote the answer to question 1. What net force does the biker experience? Ncos75, Ncos75-W, Nsin75, or Nsin75-W?

To calculate the radius of the circle traced out by the biker, what additional piece of information do you need? the coefficient of kinetic friction, the coefficient of static friction, the acceleration due to gravity, or none of the above?

If the biker didn't bank the bicycle while going in a circle, she would fall off the seat, partly because: A force would push her outward, a force would push her inward, a force would push her backward, or the net force of her would be zero?

Explanation / Answer

Normal Force on the biker is (500N)sin75

Net Force on the biker is

Ncos75-W

None of the above, as centripetal force is F = mv^2/r, all are provided.

A force would push her inward

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