An occupant of a car has a chance of surviving a crash if the deceleration during the crash is not more than 30 g. Calculate the force on a 70 kg person deceleerating at the same rate.

Answer 1

Force equals mass times acceleration. If you multiply them together, you get the force in Newtons.

acceleration = 30g = 30 * 9.8 m/s^2 = 294 m/s^2

294 x 70 = ___ N

One Newton is about a quarter pound of force.

Here's another way to look at it: The decelerating force will be 30 times the person's weight.

Answer 2

20,580

Answer 3

drwls is exactly right

Answer 4

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