Answer:
Acceleration is the rate of change in velocity. Momentum is the mass times the velocity. So if you multiply the mass times the acceleration, you get the of change of momentum.
Recall that
where 
and 
are the initial and final velocities, respecitvely; 
is the acceleration; and 
is the change in position.
So we have
(Normally, this equation has two solutions, but we omit the negative one because the car is moving in one direction.)
Out of the choices given, the best choice to explain the direction of the moving force of air is from area o high pressure to areas of low pressure.
D
Determination of the general direction of the sound lessens its dispersion and it reaches the observers at a higher intensity, meaning it is louder.
Explanation: The first one
Source: it literally has fusion in the name
