A143 kg astronaut is floating in
space. she throws a 0.725 kg
wrench forward at 13.8 m/s. what
is her recoil velocity?

Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.