Answer:

Explanation:
The gravitational force between two objects is given by

where
G is the gravitational constant
m1, m2 are the two masses
r is the separation between the two masses
In this problem, we have
the mass of each truck
r = 2.0 m is their separation
Substituting,

A good diet. and exersise is the answer
At one later moment, its speed is 1. 20Mm/s (non relativistic because v is much less than the speed of light).
Answer - corona, chromosphere, photosphere