You are standing in a moving bus, facing forward, with closedtoe shoes on, and you suddenly fall forward as the bus comes to an immediate stop. What force caused you to fall forward?

Answer
There is no force leading to your fall.
Question
A horizontal force accelerates a box from rest across a horizontal surface (friction is present) at a constant rate. The experiment is repeated, and all conditions remain the same with the exception that the horizontal force is doubled. What happens to the box's acceleration?

Answer
It increases to more than double its original value.
Question
What is the mass of a person who weighs 110 lb?

Answer
50 kg
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A person rides in an elevator. If the mass of the person is 60.0 kg and the elevator accelerates downward with an acceleration of 4.90 m/s^2, what is the reading on the scale?

Answer
883 N
Question
What is the conversion factor between km/hr^2 and m/s^2?

Answer
7.72 x 10^6 m/s^2
Question
A hot air balloon rises to an altitude of 600 fathoms. What is this height in feet? (1 fathom = 6 feet)

Answer
3600 ft
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