Challenge Yourself
Work is done when we lift
an object from the ground.
What about dropping an
object to the ground?
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Answer:
Gravity causes objects to fall toward the Earth. Over the entire surface of the planet, gravity causes a constant acceleration of 9.8 m/s2, commonly given the symbol g. ... This acceleration causes the object to increase in speed by 9.8 meters per second every second it falls under gravity.
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