A football of mass 50gm falls from a height 5m and rebounds from the floor to a height of 3m ,find(A) kinetic energy at the momentum of striking the ground .(B)The kinetic energy at the moment of leaving the ground​

What are close-toed shoes least likely to provide protection against? hydrogen gas produced during a reaction spilled water from a hot-water bath broken glass from a dropped test tube acid leaking from a cracked beaker