Question

how can newton’s laws explain why the brain is in danger of injury when there is impact to the head? (1 point)
the blood vessels of the brain shrink, so less blood flows to the brain.
the blood vessels of the brain expand, so more blood flows to the brain.
the brain moves inside the skull with a force equal and opposite to that of the impact.
the brain is fixed in one place inside the skull and cannot move away from the impact.

Explanation:

Newton's third - law states that for every action, there is an equal and opposite reaction. When the head is impacted, the brain moves inside the skull with a force equal and opposite to that of the impact, which can cause injury. The other options about blood vessels are not related to Newton's laws for this context. The brain is not fixed in one place inside the skull.

Answer:

The brain moves inside the skull with a force equal and opposite to that of the impact.