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Physics, 02.12.2019 22:00

Atruck is traveling horizontally to the right. when the truck starts to slow down, the crate on the (frictionless) truck bed starts to slide. in what direction could the net force be on the crate?

a. straight up (the normal force).
b. horizontal and to the left.
c. straight down (because of gravity).
d. horizontal and to the right.
e. no direction. the net force is zero.

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