Laws of Motion-Static and Kinetic Friction (NEET Physics): Questions 1 - 3 of 3

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Question number: 1

» Laws of Motion » Static and Kinetic Friction

MCQ▾

Question

Assuming the length of a chain to be L and coefficient of static friction u. Compute the maximum length of the chain which can be held outside a table without sliding.

Choices

Choice (4) Response
a.

2μL1+μ

b.

3μL1+μ

c.

μL1μ

d.

μL1+μ

Question number: 2

» Laws of Motion » Static and Kinetic Friction

MCQ▾

Question

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 –

(1) The graph is a straight line of slope 45°

(2) The graph is straight line parallel to the F axis

(3) The graph is a straight line of slope 45° for small F and a straight line parallel to the F-axis for large F.

(4) There is small kink on the graph

Which of the following options are correct?

Choices

Choice (4) Response
a.

1 and 4

b.

1 and 2

c.

3 and 4

d.

1 and 3

Question number: 3

» Laws of Motion » Static and Kinetic Friction

MCQ▾

Question

The coefficient of static friction between the two blocks shown in figure is a. and the table is smooth. What maximum horizontal force F can be applied to the block of mass M so that the blocks move together?

Choices

Choice (4) Response
a.

2µg (M + m)

b.

µg (M - m)

c.

µg (M + m)

d.

µg (M + 2m)

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