Question

Two beads, one blue and one green are threaded on a wire, which is bent into a parabolic shape. The blue bead, with mass 0.365 kg, starts at A with zero initial velocity. At B, the blue bead undergoes an elastic collision with an initially stationary 0.665 kg green bead. To what height (in m) does the green bead rise along the wire? Note that h = 1.50 m, and neglect friction.

Use conservation of mechanical energy to find the speed of the blue bead just before it hits the green bead, then apply momentum conservation to find the speed of the green bead, noting that the collision is perfectly elastic. Finally, use the conservation of mechanical energy again to find the final height of the green bead.

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Answer 1

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