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Sagot :
The final possible sentence is, "It accelerates downward vertically at a rate of 10 m/s/s when it leaves the hand."
Why would the ball Accelerate downwards?
The ball experiences the effects of the acceleration caused by gravity at every moment of its motion (10 m/s2 is assumed). Whatever the ball's elevation, this is true. Gravitational acceleration is always downward-pointing (not up).
The motion is kinematically defined by a parabola with branches heading downward as a function of time (motion under constant acceleration), with the vertex marking the highest height the ball can reach in the absence of air resistance. The time spent moving up and down is equal because the two branches (which represent motion in both directions) are equally spaced from the vertex.
Learn more about Gravitational Force here:
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The given question is incomplete, the complete question is:
A ball is thrown vertically into the air and when it returns after an interval of 2 seconds, it is caught. Which one of the following statements is true if the acceleration due to gravity is 10 m/s/s and air resistance can be neglected?
The acceleration at the top of its flight is 10 m/s/s upwards.
The acceleration at the top of its flight is 0 m/s/s.
The time taken for the descending motion does not equal the time taken for the ascending motion.
The acceleration after it leaves the hand is 10 m/s/s downwards.
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