Injury in Collision
Question:
If a car is in an accident or someone is in free fall, and we
find the force by mv/t, what is a value of F for which a person
would be injured.
Answer:
The amount of force required to cause injury to a person depends
on how the force is applied. If for example a person strikes a
sharp object like the point of a knife, the force to cause injury
is small, a pound or so could prove fatal. People have been known
to survive falls from great height where the peak force of the
collision with the ground was several tons. It depends on how the
force is distributed and to some extent on the toughness of the
person. There is no simple answer to your question.