LAWS of BIOMECHANCS
Sir Isaac Newton stated three laws which explain the relationship between force and movement.
Law #1
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Many automobile passengers have suffered neck injuries when struck by cars from behind. How
does Newton's law of inertia apply here?
- How do headrests help to guard against this type of injury?
Law #2
Suppose a cart is being moved by a certain net force. If a box of junk is dumped into the cart, so its mass
is doubled, by how much does the acceleration change?
Law #3
When a hammer exerts a force on a nail, how does the amount of force
compare to that of the nail on the hammer?
ACTIVITY:
Try these word problems: be sure to write in the law that applies and then explain why
