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A man walks up a stationary escalator in...

A man walks up a stationary escalator in 90sec. When this man stands on a moving escalator he goes up in 60 sec. The time taken by the man to walk up the moving escalator is

A

30s

B

45s

C

36s

D

48s

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-MOTION IN A STRAIGHT LINE-Exercise -2
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  2. A bus starts from rest with a constant acceleration of 5 "m/s"^2. At t...

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  3. A man walks up a stationary escalator in 90sec. When this man stands o...

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  4. Two trains are each 50m long moving parallel towards each other at spe...

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  5. A car moving on a traight road accelerates from a speed of 4.1 m/s to ...

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  6. A body starting with a velocity 'v' returns to its initial position af...

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  7. The position of a particle moving in the XY-plane at any time 't is gi...

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  8. An object falling through a fluid is observed to have an acceleration ...

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  9. The position of an object moving along x-axis is given by x=a+bt^(2) w...

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  10. A police van moving on a highway with a speed of 30 "km h"^(-1) fires ...

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  11. A body falls from 80 m. Its time of descent is [g = 10 ms^(-2)]

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  12. Two bodies whose masses are in the ratio 2:1 are dropped simultaneousl...

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  13. A body falls for 5s from rest. If the accleration due to gravity of ea...

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  14. A body freely falling from a height h describes (7h)/16 in the last se...

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  15. A body released from the top of a tower of height h takes T seconds to...

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  16. A stone falls freely under gravity. It covers distances h1, h2, and h2...

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  17. The ratio of times taken by freely falling body to cover first metre, ...

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  18. A body is droped from a height 122.5 m. If its stopped after 3 seconds...

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  19. A freely falling body travels of total distance in 5th second

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  20. If the distance travelled by a freely falling body in the last second ...

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