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A car covers 1/4 of the total distance w...

A car covers 1/4 of the total distance with velocity of `20 ms^(-1)`,next 1/4 part with the velcoity of `40 ms^(-1)`. The `20ms^(-1)` and last 1/4 part with the velocity of `40 ms^(-1)` . Find the averafe speed of the car.

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The correct Answer is:
`26. 67 ms^(-1)`
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SL ARORA-MOTION IN ONE DIMENSION-problems for self practice
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  2. A body travels a distance s(1) with vleocity v(1) and distance s(2) w...

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  3. A car covers 1/4 of the total distance with velocity of 20 ms^(-1),nex...

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  4. A car along a starigth line for the first half time with speed 50 kmh^...

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  5. A train A moves with a unifrom velocity of 60 kmh^(-1) another train B...

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  9. an open car is moving on a road with a speed of 100 kmh ^(-1) . A man ...

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  10. A car A is moving with is speed of 60kmh^(-1) an car B is moving with ...

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  11. two trains A and B,each of length 100 m, in length are running in opp...

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  12. two buses start simultaneoulsly towards each othehr from towns A and B...

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  13. Two trains, each of length 100 m, are running on parallel tracks. One...

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  14. A man swins in a river with and against water at the rate of 15 kmh ^(...

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  15. A motrobaot covers the distance between the two sport on the river is ...

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  16. two men can swin in still water at the rate of 5 kmh^(-1) . One of th...

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  17. A body starts to slide over a horizontal surface with an initial veloc...

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  18. An electron is emittied with a veloctiy of 5 xx 10 ^(6) ms^(-1) . It ...

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  19. A car moving along a stainght highway with a speed of 72 kmh^(-1) is b...

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  20. on turning a corner a car driving at 36kmh^(-1) finds a child on the r...

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