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18 June, 01:33

If the mass of each ball were the same, but the velocity of ball A were twice as much as ball B, what do you think would happen to the final velocity of each ball after the collision? To answer this question, create a hypotheses in the form of an if-then statement. The "if" is the independent variable, the thing that is being changed. The "then" is the dependent variable, or what you measure as the out come.

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  1. 18 June, 02:11
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    Given momentum is conserved and is mv

    if

    mass is the same and va=2vb

    then momentum is m (2vb + vb)

    if collision is elastic (bounces off)

    then m (2vb + vb) = m (vfa + vfb)

    3vb = vfa + vfb

    meaning final velocities would be different

    if collision is inelastic (sticks together)

    then m (2vb + vb) = (m+m) vf

    meaning final velocity would be same

    is this what you wanted?
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