Question: A ball is allowed to drop from rest. If the upward direction is positive, then after 1 second its velocity will be A. -9.8 m/s.

A ball is allowed to drop from rest. If the upward direction is positive, then after 1 second its velocity will be

A.

-9.8 m/s.
B.

-4.9 m/s.
C.

4.9 m/s.
D.

9.8 m/s.

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