See attached file for full problem description and diagram.
5-106. A small remote-control car with a mass of 1.60 kg moves at a
constant speed of v=12.0 m/s in a vertical circle inside a hollow metal
cylinder that has a radius of 5.00m (Fig. 5-69). What is the magnitude
of the normal force exerted on the car by the walls of the cylinder at
a) point A (at the bottom of the vertical circle)? b) point B (at the
top of the vertical circle)?
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