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AP® Physics C: Mechanics

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Normal Force Exerted on a Bag

APPHMC-GJVWCK

You start to pull upwards on a $10 kg$ bag on the floor to lift it up.

At the moment when your applied force is $F_A = 70 N$, which answer is closest to the normal force of the floor acting on the bag?

A

$100 \ N$

B

$70 \ N$

C

$170 \ N$

D

$30 \ N$

E

The bag is no longer touching the floor.