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.

Question

Physics

Kendall

22 September, 12:12

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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Answers (1)

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Erika Clay · Answer 1

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?