Which of the following is a scalar quantity?

The rate of change of displacement of a body is called

The unit of work in S.I. units is

The static friction

Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)

The resultant of the two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then

If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.

A framed structure is imperfect, if the number of members are __________ (2j - 3).

The range of a projectile is maximum, when the angle of projection is

The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.

The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in magnitude and direction by the third side of a triangle, taken in opposite order.

The bodies which rebound after impact are called

The angle of inclination with the vertical is __________ if the cyclist is running at a faster speed than that when he is running at a slower speed.

The loss of kinetic energy during inelastic impact, is given by(where m₁ = Mass of the first body,m₂ = Mass of the second body, and u₁ and u₂ = Velocities of the first and second bodies respectively.)

The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion.

The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as

The efficiency of a screw jack is maximum, when(where α = Helix angle, and φ = Angle of friction.)

Onejoule is equal to

Varingon's theorem of moments states that if a number of coplaner forces acting on a particle are in equilibrium, then

The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad / s², is

Varingon's theorem of moments states that if a number of coplaner forces acting on a particle are in equilibrium, then

The centre of gravity of a hemisphere lies at a distance of 3r / 8 from its base measured along the vertical radius.

The centre of gravity of a hemisphere lies at a distance of 3r / 8 from its base measured along the vertical radius.

The coefficient of restitution for elastic bodies is one.

The periodic time (T) is given by(where ω = Angular velocity of particle in rad / s.)

The above figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is

Whenever a force acts on a body and the body undergoes a displacement, then

The maximum height of a projectile on a horizontal plane, is

The total energy possessed by a system of moving bodies

The centre of gravity of a right circular solid cone is at a distance of __________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)

The centre of gravity of a right circular solid cone is at a distance of __________ from its base, measured along the vertical axis.(where h = Height of a right circular solid cone.)

When a particle moves along a straight path, there will be centripetal acceleration as well as tangential acceleration.

The periodic time (T) is given by(where ω = Angular velocity of particle in rad / s.)

In actual machines, mechanical advantage is __________ velocity ratio.

The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction in which the force acts. This statement is known as

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

The above figure shows the two equal forces at right angles acting at a point. The value of force R acting along their bisector and in opposite direction is

A block ot masskg 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.

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

Coefficient of friction depends upon

According to law of triangle of forces

An ideal machine is one whose efficiency is

Which of the following is not the unit of power?

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

The maximum mechanical advantage of a lifting machine is

The velocity ratio for the third system of pulleys is

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

According to Lami’s theorem

The angle between two forces when the resultant is maximum and minimum respectively are

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