A baseball is traveling ( 30 m/s) and is hit by a bat. It leaves the bat traveling (−40 m/s). What is the change in the velocity? Remember that direction is what makes velocity different than speed. −10 m/s −30 m/s −40 m/s −70 m/s

70 m/s

Explanation:

It should be 70m/s since if the baseball is treling 30m/s (let's say for west) and the bat hits the baseball making it traveling east 40m/s (speed). If it is in velocity then we can say 30m/s is positive or negative, your preference, and then the velocity of (40m/s speed) will become the opposite of that. All you need to do is add the absolute value of both sides to get your 70 m/s

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