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Questions  

Balls A and B are thrown from two points lying on the same horizontal plane separated by a distance 120 m. Which of the following is true?

a
The two balls can never meet
b
The balls can meet, if the ball B is thrown 1s later
c
The two balls meet at a height of 45 m
d
None of the above

detailed solution

Correct option is C

Two balls will meet, if (50 cos 370) tA = 120 or tA = 3 s Vertical component of A is 50 sin 370 or 30 ms-1 so they willmeet, if thrown simultaneously.hA=hB=30×3-12×10×(3)2=45 m

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