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Grade 12th passWave Motion

sir may u plz elaborate the solution of both of these questnz...... i repost both of them.. the ques which i wanna asked, i draw stars infront of them...

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8 Years agoGrade 12th pass
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1 Answer

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ApprovedApproved Tutor Answer8 Years ago

Momentum is signed (a vector) and conserved.

Before collosion: 2 * 6 - 3 * 4 = 0

After collision 2 * x - 3 * 3 = 0

x = 4.5 m/s

Please ask one question in one thread only.