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A car travels the first half of a distan...

A car travels the first half of a distance between two places a speed of 30 km/hr and the second half of the distance a 50 km/hr. The average speed of the car for the whole journey is

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37.5 km/hr
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AAKASH SERIES-MOTION IN A STRAIGHT LINE -Numerical exercise(LEVEL-2)
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  2. A car travels the first half of a distance between two places a speed ...

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  3. A car traveled at 80 mph for the first half of the time of a trip and ...

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  4. One car moving on a straight road covers one third of the distance wit...

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

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  6. A body starts with a velocity (2hati + 3hatj + 11hatk) m/s and moves ...

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  7. A car moving at a constant speed of 36kmph moves north wards for 20 mi...

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  8. Moving with a uniform acceleration from the state of rest a body cover...

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  9. A block of mass m is suspended from one end of a light spring as shown...

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  10. A car moving with constant acceleration crosses two points A and B wit...

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  11. A body covers 200 cm in the first 2 sec and 220 cm in the next 4 sec u...

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  12. Two cars X and Y start off to a race on a straight path with initial v...

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  13. The displacement x of a particle moving in one direction is given by t...

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  14. If a body loses half of its velocity on penetrating 3 cm in a wooden b...

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  15. A particle moving with uniform acceleration has its final velocity (v=...

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  16. A person is running at his maximum speed of 4 m/s to catch a train. Wh...

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  17. When a man stands on a moving escalator he goes up in 50 sec. and when...

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  18. An object describes 225 m in the first 3s and 400 m in the next 2s.Cal...

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  19. Ewhen a stone is dropped into a well, the splash of water is heard aft...

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  20. Two stones are through up simultaneously from the edge of a cliff 240 ...

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