Block 1, of mass "m1", moves across a frictionless surface with speed "vi". It collides elastically with block 2, of mass "m2", which is at rest (vi=0). After the collision, block 1 moves with speed "vf", while block 2 moves with speed "vf". Assume that m1 > m2, so that after the collision, the two objects move off in the direction of the first object before the collision.
1. This collision is elastic. What quantities, if any, are conserved in this collision?
-kinetic energy only
-momentum only
-kinetic energy and momentum
2. What is the final speed vf of block 1?
Express vf in terms of m1, m2, and vi.
3. What is the final speed vf of block 2?
Express vf in terms of m1, m2, and vi.
2006-11-04
12:46:33
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2 answers
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asked by
Anonymous