Three particles A, B and C have masses 0.2kg, mkg and 0.3kg respectively. the particles are free to move on a smooth horizonatal table. initially the particles lie in a straight line, with B and C at rest, and A is moving directly towords B with speed 'u'ms-1. After A's collision with B, the speed of A is '1/2u'ms-1 in the same direction as before. When B collides with C, the particles B and C coalesce and begin to move with speed '1/4u'ms-1.
a) Find the value of m
b) Find in terms of u, the speed of B before it collides with C
2007-02-17
22:28:35
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3 answers
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asked by
Leonidus
2