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Physics, 02.09.2019 04:50 StupidFatChipmunk

What force causes riders to feel heavy and weightless on a roller coaster?
a. the force of gravity
c. the normal force
b. a combination of air resistance and friction
d. none of the above.

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What force causes riders to feel heavy and weightless on a roller coaster?
a. the force of gr...

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