A 10,000 N piano is dropped from the top of a building. When the piano reaches terminal speed…

1 answer:

wel3 years ago

7 0

a). When the piano reaches terminal speed, it is no longer accelerating,
so the net force on it must be <em>zero</em>.

b). If the net force on the piano is zero, the upward force of air resistance on it
must be exactly equal to the downward force of gravity ... <em>10,000 N</em>.

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