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Physics

At the centre of a circular ice rink, a 67.0 kg ice skater moving 2.00 m/s north hits and grabs onto a 41.0 kg ice skater who had been traveling west at 4.30 m/s. If the skaters hold onto each other and the rink has a 42.0 m diameter, what is the amount of time for the skaters to reach the edge of the rink?

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  1. Initial N=final N
    67*2=(67+41)Vn in N direction
    intial W= final west
    41*4.3=(67+41)Vw in West direction.
    solve for Vw and Vn, then solve
    v=sqrt(Vw^2+Vn^2)

    time=21/v

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