Kardo and Alyana are out on a date. Kardo makes a
rapid right-hand turn. Alyana begins sliding across the vinyl
seat (that Kardo had waxed and polished beforehand) and
collides with Kardo. To break the awkwardness of the situation,
Kardo and Alyana begin discussing the physics of the motion
that was just experienced, Kardo suggests that objects which
move in a circle experience an outward force. Thus, as the tum
was made, Alyana experienced an outward force that pushed
her towards Kardo. Alyana disagrees, arguing that objects that
move in a circle experience an inward force. In this case,
according to Alyana, Kardo traveled in a circle due to the force
of his door pushing him inward. Alyana did not travel in a circle
since there was no force pushing her inward; she merely
continued in a straight line until she collided with Kardo. Who
is correct? Why?