A block is placed on a rough floor and a horizontal force F is applied on it. The force of friction f by the floor on the block is measured for different values of F and a graph is plotted between them. Then the graph will be

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A block is placed on a rough floor and a horizontal external force F is applied on it. The force of friction f by the floor on the block is measured for different values of F and a graph is plotted between them. (taking f on Y and F on X axis)

Q. A block is placed on a rough floor and a horizontal force

F

is applied on it. The force of friction

f

by the floor on the block is measured for different values of

F

and a graph plotted between them ______
A. is a straight line of slope

45^{0}

B. is a straight line of slope less than

45^{0}

C. is a straight line of slope

45^{0}

for small

F

and a straight line parallel to the

F - a x i s

for large

F

D. there is a small kink on the graph

Q. A block is placed on a rough floor and a horizontal force F is applied on it. The force of friction

f

by the floor on the block is measured for different values of

F

and a graph is plotted between them-
[a] The graph is a straight line of slope

45^{o}

[b] The graph is straight line parallel to the F axis
[c] The graph is a straight line of slope

45^{o}

for small F and a straight line parallel to the F-axis for large F.
[d] There is small kink on the graph

Q. A block is placed on a rough floor and a horizontal force F is applied on it. The force of friction f by the floor on the block is measured for different values of F and a graph is plotted between them.
(a) The graph is a straight line of slope 45°.
(b) The graph is a straight line parallel to the F-axis.
(c) The graph is a straight line of slope 45° for small F and a straight line parallel to the F-axis for large F.
(d) There is a small kink on the graph.

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