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A man walks on a straight road from his ...

A man walks on a straight road from his home to a market `2.5 km` away with a speed of ` 5 km h^(-1)`. Finding the market closed, he instantly turns and walks back home with a speed of `7.5km h^(-1)`.
a) What is the magnitude of average velocity, and
b) average speed of the man over the following intervals of time:
i)`0 to 30` min, ii)` 0 to 50` min, iii)` 0 to 40 `min ?

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MAXIMUM PUBLICATION-MOTION IN ONE DIMENSION-EXERCISE
  1. On a two lane road, car A is travelling with a speed of 36 km h −1 ....

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  2. Read each statement below carefully and state with reasons and example...

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  3. A man walks on a straight road from his home to a market 2.5 km away w...

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  4. Look at the graphs (a) to (d) in the following figure carefully and st...

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  5. If 'v' is the velocity and 'a' is the acceleration , give an example o...

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  6. (a) The figure shows the position time graph of a body moving along a ...

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  7. The figure shows the position time graph of a body moving along a stra...

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  8. From the velocity-time graph of a body moving with uniform acceleratio...

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  9. A physical quantity having both magnitude and direction is a vector an...

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  10. Acceleration is the time rate of change of velocity. Give an example...

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  11. Graph representing the motion of a body is shown below. State with rea...

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  12. Graph representing the motion of a body is shown below. State with rea...

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  13. Acceleration -time graph of a body starts from rest as shown below : ...

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  14. Acceleration -time graph of a body starts from rest as shown below : ...

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  15. Acceleration -time graph of a body starts from rest as shown below : ...

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  16. State in the following cases whether the motion is one,two or three di...

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  17. Derive the equations of motion for non-uniform motion in one dimension...

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  18. Acceleration is defined as the rate of change of velocity. Is it pos...

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  19. Acceleration is defined as the rate of change of velocity. Draw the ...

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  20. Acceleration is defined as the rate of change of velocity. Obtain the ...

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