A 0.75-kg lump of clay is thrown at +6 m/s against a brick wall. It takes 0.08 seconds for the sticky mass to completely stop. What was the magnitudeof the Force on the clay from the wall? PLEASE HELP ME!!

Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference