Question

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?

Answer 1

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

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