Ramesh tries to pull a box on a table as shown. In case () he applies a force F to pull it. Inc the same box has been placed on some pencils. The force required to pull it now is f. Is f= Forf < F? Justify.
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Answer:
Given, f(x)=x
2
∴
(1.1−1)
f(1.1)−f(1)
=
(1.1−1)
(1.1)
2
−(1)
2
=
0.1
1.21−1
=
0.1
0.21
=2.1
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