when a mass is falling throuh a height,first find the time required to reach the ground(plate)from the formula
s=1/2*g*t*t
in this g=9.8 mt/sec2,s=0.5 mt(in this problem)we will gwt the time as 0.3 sec.now we have to the potential energy as m*g*h this is equal to work done per unit time i.e...
I HAVE DEVELOPED THE SIMILAR MACHINE FOR SEPARATING THE CAKES.IHAVE GIVEN FOUR SCREW WITH FOUR GUIDE RODS WITH BRONZE BUSHES.U SHOUL ENSURE THAT NO RADIAL LOADS COMES ON TO THE SCREW THIS IS ACHIVED BY PROVIDING THE LESSER CLEARENCE BETWEEN BRONZE BUSH AND GUIDEROD THAN THE PLAY BETWEEN NUT NAD...
