Answer:
A person's shoe has area of 44cm2 on the ground, their weight is 650N. What is their pressure (in N/cm2) A piece of glass can withstand a pressure of 21000 N/m2, what is the minimum force needed to break the glass with a special hammer of surface 3 cm by 4cm.Ice cracks if the pressure on it is more than 3000 N/m2. If a man of mass 800N wants to safely walk over the ice what area do each of his snow boots need to be in m2.
Explanation:
