A100 kg cart goes around the inside of a vertical loop of a roller coaster. the radius of the loop is 3 m and the cart moves at a speed of 6 m/s at the top. the force exerted by the track on the cart at the top of the loop is

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