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A particle of mass m moving towards the east with speedcollides with another particle of the same mass and samespeed v moving towards the north. If the two particles sticto each other, the new particle of mass 2m will have a speeof(a) v(b) v/2(d) v2 |
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Answer» These particles are moving perpendicular to each other. The figure of their motion is a right angled triangle. The resultant velocity is the hypotenuse of the triangle formed. The triangle is of base v and height vV. By pythagoras theorem the hypotenuse is : Hypotenuse = √(v² + v²) = √2v² = v√v The velocity is thus : = v√2 |
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