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A ball thrown vertically up is at its highest point. Its acceleration there is
A9.8 m/s² downward
BZero at that instant
C9.8 m/s² upward
DIncreasing steadily
Answer & Solution
Correct answer: A. 9.8 m/s² downward
Gravity acts throughout the flight, so only the velocity is zero at the top while acceleration stays 9.8 m/s² downward.
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