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makeAwish
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Homework Statement
A 22.00 lead sphere is hanging from a hook by a thin wire 3.90 long, and is free to swing in a complete circle. Suddenly it is struck horizontally by a 4.50 steel dart that embeds itself in the lead sphere.
What must be the minimum initial speed of the dart so that the combination makes a complete circular loop after the collision?
The attempt at a solution
I tried finding expression for tension.
at bottom, T - mg = mv^2/r
at top, T + mg = mv^2/r
Then use conservation of momentum for perfectly inelastic collision.
but i can't solve. Can someone help me pls?
Thanks!
A 22.00 lead sphere is hanging from a hook by a thin wire 3.90 long, and is free to swing in a complete circle. Suddenly it is struck horizontally by a 4.50 steel dart that embeds itself in the lead sphere.
What must be the minimum initial speed of the dart so that the combination makes a complete circular loop after the collision?
The attempt at a solution
I tried finding expression for tension.
at bottom, T - mg = mv^2/r
at top, T + mg = mv^2/r
Then use conservation of momentum for perfectly inelastic collision.
but i can't solve. Can someone help me pls?
Thanks!