What proactive measures can reduce someone's risk for danger or assault?

Explanation:

One proactive measure that can reduce someone's risk for danger or assault is not walking alone late at night. Another would be to carry a whistle around your neck.

Mary concludes that the foam rubber balls’ acceleration during the collision was THE SAME AS the steel balls’ acceleration. She concludes that the collision between the foam rubber balls is an ELASTIC collision.

The masses of the two objects are the same therefore its acceleration would also become the same. It is an elastic collision because little or less friction occurred in the situation creating kinetic energy.