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Two particles are projected with speed 4...

Two particles are projected with speed `4m//s` and `3m//s` simultaneously from same point as shown in the figure. Then:

A

Their relative velocity is along vertical direction

B

Their relative acceleration. is non-zero and it is along vertical direction·

C

They will hit the surface simultaneouslu

D

Their relative velocity is constanand has magnitude `1.4 m//s`

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The correct Answer is:
A, D
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