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In a laboratory experiment four students...

In a laboratory experiment four students plotted graphs between force of limiting friction `(F)` and normal reaction `(R)` Which one is correct .

A

.

B

.

C

.

D

.

Text Solution

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The correct Answer is:
d
As `F prop R` therefore, choice (d) is the correct graph between `F` and `R` .
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Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta A force of 49N is just able to move a block of wood weighing 10kg on a rough horizontal surface The coefficient of friction is .

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