Directions: Complete the table below. Time (t)
a
Final velocity
V
Initial velocity
V
V-V
Av
1
26 m/s
20 m/s
6 s
2.
O km/s
12 km/s
4s
3
8 m/s
3 m/s
2 s
4
46.4 m/s
27.3 m/s
11 s
Ол
5 m/s
15 m/s
5 s

Which of the following correctly describes what happens when an atomic bomb explodes? small pieces of fissionable material are joined and form a body with a mass greater than the critical mass, the relative number of neutrons escaping decreases, and a chain reaction and explosion result. large pieces of fissionable matter are brought together quickly and form a body with a mass smaller than the critical mass, the relative number of escaping neutrons increases, and a chain reaction and explosion result.