A ball is dropped on the floor from a height of 10 m. It rebounds to a height of 2.5 m. If the ball is in contact with the floor for 0.01 sec, then average acceleration during contact is

\[\text{14}00\text{ m}/{{\text{s}}^{\text{2}}}\]

\[\text{21}00\text{m}/{{\text{s}}^{\text{2}}}\]

\[\text{7}00\text{ m}/{{\text{s}}^{\text{2}}}\]

\[~\text{4}00\text{ m}/{{\text{s}}^{\text{2}}}\]

A ball is dropped on the floor from a height of 10 m. It rebounds to a

1.	A ball is dropped on the floor from a height of 10 m. It rebounds to a height of 2.5 m. If the ball is in contact with the floor for 0.01 sec, then average acceleration during contact is
A.	\[\text{21}00\text{m}/{{\text{s}}^{\text{2}}}\]
B.	\[\text{14}00\text{ m}/{{\text{s}}^{\text{2}}}\]
C.	\[\text{7}00\text{ m}/{{\text{s}}^{\text{2}}}\]
D.	\[~\text{4}00\text{ m}/{{\text{s}}^{\text{2}}}\]
Answer» B. \[\text{14}00\text{ m}/{{\text{s}}^{\text{2}}}\]

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A ball is dropped on the floor from a height of 10 m. It rebounds to a height of 2.5 m. If the ball is in contact with the floor for 0.01 sec, then average acceleration during contact is

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