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Would the answer be -5,000 m/s^2?A baseball moving at 20 m/s is struck by a bat and moves in the opposite direction at 30 m/s. if the impact lasted for 0.010 s, what was the baseball's acceleration?

- Thread starter joel amos
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Would the answer be -5,000 m/s^2?A baseball moving at 20 m/s is struck by a bat and moves in the opposite direction at 30 m/s. if the impact lasted for 0.010 s, what was the baseball's acceleration?

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sophiecentaur

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If you draw a big arrow on your (imaginary, perhaps) diagram to define the direction you will use for Positive, stick to it, and, if the acceleration comes out as negative then this means the velocity in that direction is decreasing. If you want to talk to 'Joe Public', at that point, you can then use the word "deceleration'.

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Thanks guys

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