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Solve the following examples: (numerical...

Solve the following examples: (numerical problems)
A person swims 100 m in the first 40 s, 80 m in the next 40 s and 45 m in the last 20 s. What is the average speed?

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`2.25 m//s^(2)`
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BAL BHARTI-LAW OF MOTION-Exercises
  1. Match the first column with appropriate entries in the second and thir...

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  2. Distinguish between: Distance and Displacement:

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  3. Clarify the differences Uniform and non-uniform motion.

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  4. Complete the following table.

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  5. Complete the sentences and explain them. The minimum distance betwee...

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  6. Complete the sentences and explain them: Deceleration is ...............

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  7. Complete the sentences and explain them: When an object is in uniform...

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  8. Complete the sentences and explain them: During collision ........ re...

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  9. Complete the sentences and explain them: The working of a rocket depe...

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

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

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

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

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  14. Answer the following questions: Take 5 examples from your surrounding...

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

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  16. An object of mass16 kg is moving with an acceleration of 3m/s2. Calcul...

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  17. Solve the following examples: (numerical problems) A bullet having a ...

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

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