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A person of height 180 cm starts from a ...

A person of height 180 cm starts from a lamp post height 450 cm and walks at the constant rate of 4 km per hour. Find the rate at which his shadow increases.

A

2 kmph

B

6.4 kmph

C

8/3 kmph

D

4kmph

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-RATE MEASUREMENT-PRACTICE SHEET (EXERCISE - 1) (LEVEL - 1) (STRAIGHT OBJECTIVE TYPE QUESTION)
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  10. If the distance S travelled by a particle in time t is given by s = t^...

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  11. The displacement of a particle in time 't' is given by S = t^(3) - t^(...

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  16. If a particle moves along a line by S = sqrt(1 + t) then its accelerat...

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  17. A particle moves on a line according to the law s = at^(2) + bt + c. I...

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  18. A particle velocity v at time is given by v = 2e^(2t) cos(pi t)/(3). T...

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  19. Each side of an equilateral triangle expands at the rate of 2 cm/sec. ...

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