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Three balls A, B and C are thrown in same vertical plane from three points lying on the same horizontal level as shown in figure. Which of the following statement(s) is/ are incorrect?

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Time of flights are same for all the three balls.

The balls can never meet if all the balls are projected simultaneously

Time of flights are different for different balls.

All the balls meet after 3 second if all the balls are projected simultaneously

answer is A, C.

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Detailed Solution

All have same $u_{y}$

$Δ t = \frac{120}{50 \cos 37} = \frac{67.5}{37.5 \cos 53} = 3 s$

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