31. The reaction at the support ‘A’ of the beam shown in below figure is
32. The load shared by the member BC of the structure shown in below figure is
33. $$\omega $$ rad/sec is the angular velocity of a crank whose radius is r. If it makes $${\theta ^ \circ }$$ with inner dead centre and obliquity of the connecting rod $$l$$ is $$\varphi $$, the velocity v of the piston, is given by the equation
34. The unit of rotational inertia of a body in C.G.S system is
35. A solid sphere of mass M and radius R rolls down a plane inclined at $$\theta $$ with the horizontal. The acceleration of sphere is (where g is acceleration due to gravity)
36. The ratio of unit of force in gravitational system to that in absolute system is (where ‘$${\text{g}}$$’ is acceleration due to gravity)
37. A heavy ladder resting on a floor and against a vertical wall may not be in equilibrium, if
38. A point subjected to a number of forces will be in equilibrium, if
39. If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is moving downwards, the acceleration of the lift, is
40. Minimum potential energy of a system will be in the position of
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