Laws of Motion-Force and Inertia (NEET Physics): Questions 22 - 25 of 57

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Question number: 22

» Laws of Motion » Force and Inertia

MCQ▾

Question

A body of mass 15 kg moving with a velocity of 10 m/s is to be stopped by a resistive force in 15 sec, the force will be

Choices

Choice (4) Response

a.

5 N

b.

10 N

c.

50 N

d.

100 N

Question number: 23

» Laws of Motion » Force and Inertia

MCQ▾

Question

In the arrangement shown in fig. the ends P and Q of an un stretchable string move downwards with a uniform speed U. Pulleys A and B are fixed. Mass M moves upwards with a speed of

Pulley system with mass is M and speed is U

Pulley System With Mass Is M and Speed Is U

In this figure we show the pulleys system, mass is M and speed is U.

Choices

Choice (4) Response

a.

2U cos θ

b.

U/cos θ

c.

U cos θ

d.

2U/cos θ

Question number: 24

» Laws of Motion » Force and Inertia

MCQ▾

Question

In figure ABCDE is a channel in the vertical plane, part BCDE being circular with radius r. A ball is released from A and slides without friction and without rolling. It vr”- complete the loop path when

Motion graph explained by ABCDE

Motion Graph Explained by ABCDE

In this fig we show the motion of ball as ABCDE is a vertical plane and BCDE with circular path with radius r

Choices

Choice (4) Response

a.

h > 5r/2

b.

h > 2r/5

c.

h < 5 r/2

d.

h < 2r/5

Question number: 25

» Laws of Motion » Force and Inertia

MCQ▾

Question

A string of length L is fixed at one end and carries a mass M at the other end. The string makes 2/tc revolutions per second around the vertical axis through the fixed end as Shown in the figure, then tension in the string is

String motion of length L carrying mass M

String Motion of Length L Carrying Mass M

A string of length L is fixed at one end and carries a mass M at the other end

Choices

Choice (4) Response

a.

4 ML

b.

5ML

c.

2 ML

d.

16 ML

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