Class 9
NCERT Exemplar
Chapter 1: Matter in Our Surroundings
22 questions
Chapter 2: Is Matter Around Us Pure?
37 questions
Chapter 3: Atoms and Molecules
46 questions
Chapter 4: Structure of the Atom
38 questions
Chapter 5: The Fundamental Unit of Life
52 questions
Chapter 6: Tissues
50 questions
Chapter 7: Diversity in Living Organisms
51 questions
Chapter 8: Motion
16 questions
Chapter 9: Force and Laws of Motion
18 questions
Chapter 10: Gravitation
26 questions
Chapter 11: Work and Energy
27 questions
When a body falls freely towards the earth, then its total energy
A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
Chapter 12: Sound
13 questions
Chapter 13: Why do We Fall Ill?
39 questions
Chapter 14: Natural Resourses
56 questions
Chapter 15: Improvement in Food Resources
48 questions
Question 2:
A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car
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Text solution
Verified
The potential energy depends on the height and the height from the ground remains the same. Therefore, the potential energy of the car does not change.
Hence, the correct answer is option A.
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Uploaded on: 11/25/2022
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Notes from this class (2 pages)
Uploaded on: 11/21/2022
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Notes from this class (3 pages)
Practice more questions from Science Exemplar (NCERT Exemplar)
When a body falls freely towards the earth, then its total energy
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Practice questions from Science Exemplar (NCERT Exemplar)
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A girl having mass of 35 kg sits on a trolley of mass 5 kg. The trolley is given an initial velocity of by applying a force. The trolley comes to rest after traversing a distance of 16 m.
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(b) How much work is done by the girl?
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(ii) What is the difference between potential energy and kinetic energy?
(iii) A ball of mass 0.5 kg slows down from a speed of 5 m/s to that of 3 m/s. Calculate the change in kinetic energy of the ball. State your answer giving proper units.
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| Question Text | Question 2: A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car |
| Updated On | Nov 25, 2022 |
| Topic | Work and Energy |
| Subject | Science |
| Class | Class 9 |
| Answer Type | Text solution:1 Video solution: 2 |
| Upvotes | 220 |
| Avg. Video Duration | 6 min |
