The moment of inertia of a square of side a about its base is a⁴/ 3.

The moment of inertia of a sphere of mass m and radius r, about an axis tangential to it, is

In order to determine the effects of a force, acting on a body, we must know

For any system of coplaner forces, the condition of equilibrium is that the

In collision of elastic bodies, the coefficient of restitution is the ratio of the relative velocity after impact to the relative velocity before impact.

When a body of mass m attains a velocity v from rest in time t, then the kinetic energy of translation is

Non-coplaner non-concurrent forces are those forces which

The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is

The force, by which the body is attracted, towards the centre of the earth, is called

The angle of the inclined plane at which a body just begins to slide down the plane, is called helix angle.

In collision of elastic bodies, the coefficient of restitution is the ratio of the relative velocity after impact to the relative velocity before impact.

The slope on the road surface generally provided on the curves is known as

A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is(where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

When a person, on a bicycle, drives round a curve, he has to lean __________ to maintain equilibrium.

The linear velocity of a body rotating at ω rad / s along a circular path of radius r is given by

The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is

If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys

The velocity ratio for the first system of pulleys is(where n is the number of pulleys.)

When a body falls freely under gravitational force, it possesses __________ weight.

The unit of power in S.I. units is

Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to

Moment of inertia is the

The negative acceleration is called retardation.

The centre of gravity a T-sectionmm xmm xmm from its bottom is

D' Alembert's principle basically depends upon Newton's second law of motion.

The forces, which meet at one point and their lines of action also lie on the same plane, are known as

The ratio of static friction to dynamic friction is always

The unit of power in S.I. units is

The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is

The unit of angular velocity is

Two equal and opposite parallel forces whose lines of action are different, can be replaced by a single force parallel to the given forces.

All the steel trusses of the bridges, have one of their end roller supported, and other end hinged. The main advantage of such a support is that the truss remains stable.

The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplaner concurrent forces.

The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

Coplaner concurrent forces are those forces which

Coplaner non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

The three forces ofN,N andN have their lines of action parallel to each other but act in the opposite directions. These forces are known as

A machine which is capable of doing work in the reversed direction, after the effort is removed, is called a non-reversible machine.

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

Which of the following statement is correct?

If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is

When a body of mass moment of inertia I (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

The coefficient of restitution for inelastic bodies is

The acceleration of a body sliding down an inclined surface is

The maximum displacement of a body, from its mean position is called amplitude.

In order to completely specify angular displacement by a vector, it must fix

The forces, whose lines of action are parallel to each other and act in the same directions, are known as

The amount by which the outer edge of the rail is raised, is known as super-elevation.

A science teacher claimed that Newton's third law of motion is involved while studying the motion of rockets. His statement is

The unit of force in S.I. system of units is