3. When a ball is let free fall from the top of building. What is the acceleration and what its
sign?
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4
Explanation:
When a ball is let free fall from the top of the building then it's initial velocity will be 0 or it's acceleration will be +9.8 m/s^2.
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1
Explanation:
*If a ball held in our hand is released it falls towards the earth this happens because of gravitational pull of the earth anything held at a height when released will fall towards the earth because there is a force which attracts everything to the earth's surface and this force is called force of gravity*
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