If a force of 10 N acts on surfaces of areas in the ratio 1:2, then the ratio of thrusts is:
If the ratio of the volumes of two spheres is 1:8 then ratio of their surface areas is(a) 1:2 (b) 1:4 (c) 1:8 (d) 1:16
A ring with radius 4 m is hinged at point P. Two forces F1 and F2, each of magnitude 10 N acts on the Ring. Find the ratio of the torques produced by two forces F1 to F2 is