Suzie (of mass 62 kg) is roller-blading down
the sidewalk going 16 miles per hour. She
notices a group of workers down the walkway
who have unexpectedly blocked her path, and
she makes a quick stop in 0.5 seconds.
What is Suzie’s average acceleration?
Answer in units of m/s
What force was exerted to stop Suzie?
Answer in units of N.
as always, a = ∆v/∆t = (-16mi/hr)/(5s) = -3.2 mi/hr/s
and F = ma