# physics

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Q2. A box rests on the (frictionless) bed of a truck. The truck driver starts the truck and accelerates forward. The box immediately starts to slide toward the rear of the truck. Discuss the motion of the box, in terms of Newton’s laws, as seen (a) by Mary standing on the ground next to the truck, and (b) by Chris who is riding on the truck.

• physics -

• physics -

A) can be explained by Newton's 1st law.
B) can be explained by Newton's third?

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