Question 1171. A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will

Question 1172. A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction.

Question 1173. According to principle of transmissibility of forces, the effect of a force upon a body is

Question 1174. If a number of forces are acting at a point, their resultant is given by

Question 1175. Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C

Question 1176. If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

Question 1177. The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is

Question 1178. The velocity of a body on reaching the ground from a height h, is

Question 1179. The C

Question 1180. Moment of inertia of a circular section about an axis perpendicular to the section is