Mathematics, 25.02.2020 00:54, kosta42

In science, a velocity in one direction would
be shown as (+) and velocity in the opposite
direction would shown as (-). A baseball
pitcher threw a fastball at a velocity of 42
meters/second. When the batter hit the
ball, it changed velocity to the opposite
direction, moving at 50 meters/second.
According to science, how much did the ball
change velocity when it was hit?

I know that the answer is 92 but idk How it is so can you tell me

Answers: 2

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Do you know the correct answer?

In science, a velocity in one direction would
be shown as (+) and velocity in the opposite