Piston of cross-sectional area 100cm2 is used in a hydraulic pressure to exert a force of 107 dyne on A1=100cm2. The cross-sectional area of the other piston supports a truck of mass 200 Kg is,
A hammer exerts a force of 1.5 N on each of the two nails A and B. The area of cross section of tip of nail A is 2 mm2 while that of nail B is 6 mm2. Calculate pressure on each nail in pascal.