Mechanical Engineering - Engineering Mechanics
Exercise : Engineering Mechanics - Section 2
41.
The centre of gravity of a trapezium with parallel sides a and b lies at a distance of y from the base b, as shown in the below figure. The value of y is
42.
A machine having an efficiency less than 50%, is known as
43.
The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called
44.
The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is
45.
The unit of mass moment of inertia in S.I. units is kg-m2.
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