Physics Part-I
Class 11
NCERT
1
Chapter 1: Physical World
16 questions
2
Chapter 2: Units and Measurements
51 questions
3
Chapter 3: Motion in Straight Line
50 questions
4
Chapter 4: Motion in a Plane
43 questions
5
Chapter 5: Laws of motion
52 questions
Q1
Explain why
(a) A horse cannot pull a cart and run in empty space.
(b) Passengers are thrown forward from their seats when a speeding bus stops suddenly.
(c) It is easier to pull a lawn mower than to push it.
(d) A cricketer moves his hands backwards while holding a catch.
Q2
Figure above shows the position-time graph of a body of mass . Suggest a suitable physical context for this motion. What is the time between two consecutive impulses received by the body? What is the magnitude of each impulse?
Q3
Figure shows a man standing stationary with respect to a horizontal conveyor belt that is accelerating with . What is the net force on the man? If the coefficient of static friction between the man's shoes and the belt is , up to what acceleration of the belt can the man continue to be stationary relative to the belt? (Mass of the man )
View all question6
Chapter 6: Work, Energy and Power
41 questions
7
Chapter 7: System of Particles and Rotational Motion
45 questions
8
Chapter 8: Gravitation
33 questions
Question
Easy
Solving time: 2 mins
Figure above shows the position-time graph of a body of mass . Suggest a suitable physical context for this motion. What is the time between two consecutive impulses received by the body? What is the magnitude of each impulse?
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Figure above shows the position-time graph of a body of mass . Suggest a suitable physical context for this motion. What is the time between two consecutive impulses received by the body? What is the magnitude of each impulse?
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Text solution
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Instant of impulses are the sharp points on the graph.
From the graph, the time between two consecutive impulses = 2s.
For positive slope region, in positive x direction
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Practice more questions from Physics Part-I (NCERT)
Q1
Explain why
(a) A horse cannot pull a cart and run in empty space.
(b) Passengers are thrown forward from their seats when a speeding bus stops suddenly.
(c) It is easier to pull a lawn mower than to push it.
(d) A cricketer moves his hands backwards while holding a catch.
Q2
Figure above shows the position-time graph of a body of mass . Suggest a suitable physical context for this motion. What is the time between two consecutive impulses received by the body? What is the magnitude of each impulse?
Q3
Figure shows a man standing stationary with respect to a horizontal conveyor belt that is accelerating with . What is the net force on the man? If the coefficient of static friction between the man's shoes and the belt is , up to what acceleration of the belt can the man continue to be stationary relative to the belt? (Mass of the man )
View allPractice questions from Physics Part-I (NCERT)
Question 1
Easy
Views: 6,441
Explain why
(a) A horse cannot pull a cart and run in empty space.
(b) Passengers are thrown forward from their seats when a speeding bus stops suddenly.
(c) It is easier to pull a lawn mower than to push it.
(d) A cricketer moves his hands backwards while holding a catch.
Question 2
Medium
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Question 3
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(a) the stone moves radially outwards,
(b) the stone flies off tangentially from the instant the string breaks,
(c) the stone flies off at an angle with the tangent whose magnitude depends on the speed of the particle.
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| Question Text | Figure above shows the position-time graph of a body of mass . Suggest a suitable physical context for this motion. What is the time between two consecutive impulses received by the body? What is the magnitude of each impulse? |
| Updated On | Sep 28, 2022 |
| Topic | Laws of motion |
| Subject | Physics |
| Class | Class 11 |
| Answer Type | Text solution:1 Video solution: 4 |
| Upvotes | 405 |
| Avg. Video Duration | 5 min |
