# pysical science

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an inline roler skate company is testing to see how quickly their new brakes will allow the skater to come to a stop. a skater starting at 8m/s puts on his brakes to come to a stop. it takes the skater 4 seconds to stop. what is the deceleration of the skater?

• physical science -

Divide the velocity change by the time. That is how acceleration is defined. Try to remember that.

(8m/s) / (4s) = ___ m/s^2

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