Overview
I'm working on a physics discussion question and need an explanation and answer to help me learn.
We all know from experience that a softer object will hurt less when we get hit with
it, hence the softball, padded steering wheels, and airbags. Explain, using physics,
why the “softness” makes for a much less deadlier force. Check out this YouTube
video of a car crash dummy with and without an airbag for some “hard hitting” examples.
Crash test with and without safety belt
Steve says, “Newton’s 1st Law is always true, so that means objects don’t need a continual push to keep them going at a constant speed.” Glenn says, “Newton’s 1st Law isn’t true on Earth, if I want to keep this chair moving I need to keep pushing on it or else it will stop.” Who is right? Defend your argument with physics evidence.