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Relative Motion: Rain Example

An aero plane...

Question

An aero plane is flying horizontally with a constant velocity of 100 km $p h^{- 1}$ at a height of 1 km from the ground level. At
t = 0, it start dropping packets at constant time interval of $I_{0}$ . If R represents the separation between two consecutive points of impact on the ground then for the first 3 packets $R_{1} : R_{2}$ is

A

1 : 1

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B

1 : 2

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C

2 : 1

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D

1 : 3

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Solution

The correct option is A 1 : 1
As u = constant, R = constant
$∴ R_{1} : R_{2}$ = 1:1

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