Asmall car gets into a head on collision with an 18­wheeler. during the collision, which vehicle has a larger magnitude force acting on it? during the collision which vehicle’s acceleration has the larger magnitude? explain your answers.

a) no vehicle has a larger magnitude force acting on it.

b) The vehicle's acceleration that has the larger magnitude will be the lighter one, the small car.

Explanation:

If we assume that during the collision there are no external forces acting on both vehicles (due to the very short collision time), the only forces acting are those due to Newton's 3rd Law, which by definition, are equal and opposite each other, one due to the car on the 18wheeler, and the other caused by the 18wheeler to the car.

So, as both forces are equal and no vehicle has a larger magnitude force acting on it.

Now, applying 2nd Newton's Law to each vehicle, it must be true the following:

F₁₂ = F₂₁  ∴ m₁a₁ = m₂a₂.

where m₁ = car mass   m₂= 18wheeler mass.

As m₁ is much much smaller than m₂, it follows that a₁ will be greater than a₂.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me