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A car covers the first half of the dista...

A car covers the first half of the distance between two places at a speed of `40 kmh^(-1)` and second half at `60 kmh^(-1)` Calculate the average speed of the car.

A

50 km/h

B

48km/h

C

52km/h

D

100km/h

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The correct Answer is:
B
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ALLEN-MOTION IN A PALNE-EXERCISE-2
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  9. A body starts from rest, what is the ratio of the distance travelled b...

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  10. The intial velocity of a particle is u (at t=0) and the acceleration i...

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  11. If a body starts from rest and travels 120 cm in the 6th second, then ...

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  12. If a train travelling at 72 km/h is to be brought to rest in a distanc...

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  13. A car moving with a speed of 40 km//h can be stopped after 2m by apply...

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  14. If a body starts from rest and travels 120 cm in the 6th second, then ...

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  15. A car moving with a velocity of 10 ms^(-1) can be stopped by the appli...

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  16. A body is dropped from a tower with zero velocity, reaches ground in 4...

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  17. The graph between the displacement x and time t for a particle moving ...

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  18. A body starts from rest and travels a distance x with uniform accelera...

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  19. The position vector of a particle is given by vecr=vecr(0) (1-at)t, wh...

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  20. The position vector of a particle is given by vecr() = vecr(0) (1-at...

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