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1.
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
2.
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is
3.
The moment of inertia of a solid cone of mass
4.
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
5.
In actual machines, mechanical advantage is _________ velocity ratio.
6.
The moment of inertia of a solid sphere of mass
7.
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is
8.
The unit of power in S.I. units is
9.
The maximum height of a projectile on a horizontal plane, is
10.
One watt is equal to