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Give scientific reasons: Even though th...

Give scientific reasons:
Even though the magnitudes of action force and reaction force are equal and their directions are opposite, their effects do not get cancelled.

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CHETANA PUBLICATION-LAWS OF MOTION-EXAMPLE
  1. Give formula: velocity of an object moving with uniform circular motio...

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  2. When an object falls freely to the ground, its acceleration is uniform...

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  3. Give scientific reasons: Even though the magnitudes of action force a...

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  4. Give scientific reasons: It is easier to stop a tennis ball as compare...

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  5. Give scientific reasons: The velocity of an object at rest is consider...

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  6. Motion is relative.

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  7. Newton's first law of motion is called as law of inertia. OR

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  8. The launching of a rocket is based on Newton's third law of motion

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  9. An athlete is running on a circular track. He runs a distance of 400 m...

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  10. Solve the following examples: (numerical problems) A person swims 100...

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  11. Solve the following examples: (numerical problems) An object moves 18...

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  12. An aeroplane taxies on the runway for 30 s with an acceleration of 3.2...

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  13. A kangaroo can jump 2.5 m vertically. What must be the initial velocit...

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  14. A motorboat starts from rest and moves with uniform acceleration, if i...

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  15. The mass of a cannon is 500 kg and it recoils with a speed of 0.25 m//...

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  16. Explain the three different ways to change the velocity

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  17. Explain what is positive, negative and zero acceleration.

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  18. What inference do we draw from the velocity¬ time graph for a uniforml...

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  19. State the three equations of motion and give the relationship explaine...

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  20. Explain recoil and recoil velocity. Derive its expression.

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