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A ball fills co surface from 10 m height and rebounds tis .2.5 m If duration of contact with floor is .0.01sec the average aceleration during contact is.ms-2

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  1. 1400
  2. 700
  3. 400
  4. 2100

    Answer:The correct answer is: 2100

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    left parenthesis N H subscript 4 end subscript right parenthesis subscript 2 end subscript C r subscript 2 end subscript O subscript 7 end subscript rightwards arrow N subscript 2 end subscript plus C r subscript 2 end subscript O subscript 3 end subscript plus 4 H subscript 2 end subscript O

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