(a) What is the impulse needed to stop the child?
(b) What is the average force on the child?
(c) What is the approximate mass of an object whose weight equals the force in part (b)?
(d) Could you lift such a weight with your arm?
(e) Why is it advisable to use a proper infant restraint rather than hold a child on your lap?
This question was asked on Apr 17, 2010.
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