25.1 Combining Velocities

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Luke Gurbin

Combining the §? No, but i cannot find the b`s symbol on this cell phone - combining the B`s isn`t quite accurate.

Dennis Thompson

How do you get the formula for when there are approaching each other, I.e., the addition version? When I do it with -w the denominator comes out right but the numerator is -w-v.

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