P. 4267. The original length of a spring is 25 cm. It elongates 2 cm if a force of 1 N is exerted on it. A container is filled with water and one end of the spring is fixed 30 cm above the surface of the water in the container. A wooden block of mass 32 g and of density 0.4 g/cm3 is hanged onto the other end of the spring. The height of the block is 5 cm. To what depth does the block emerges into the water?
Deadline expired on 11 October 2010.