Physics help

A car travels in a circle whose radius is 31 m, with a speed of 19 m/s.

(1) What is the magnitude of the car's acceleration?

_____ m/s2

(2) What is the nature (origin) of the horizontal force on the car? (What is exerting the force?)

The force causing the car to turn is:

CHOOSE ONE:

a) the Coriolis force from the car's non-inertial
reference frame.

b) the force of friction between the car's tires and
the road.

c) the gravitational force between the earth and the
car.

d) the mechanical force provided by the car's
engine.

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asked by arcos15

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