Question

The truck is described as travelling at 30mph to the west. The quantity described here is a(n)

Answer 1

1.speed
2. 220 mph
3. the acceleration doesnt change because the velocity is constant
4. earths gravity
5. momentum

12.p=m(v) m=80 v=2
p=80(2)=160
13. yes if the elephant is standing still
14. it remains the same (definition of the law)