A moving car of mass 1500 kg travels at a constant speed of 4.6 m/s. What is the car's average momentum? A
6900 kgm/s
B.
1500 kgm/s
C.
2500 kgm/s
D.
3600 kgm/s

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.