If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

The force which acts along the radius of a circle and directed towards the centre of the circle is known as centripetal force.

The maximum acceleration of a particle moving with simple harmonic motion is

The acceleration of a particle moving with simple harmonic motion, at any instant is given by

The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.

The force which acts along the radius of a circle and directed towards the centre of the circle is known as centripetal force.

According to the law of moments, if a number of coplaner forces acting on a particle are in equilibrium, then

If two bodies having masses m₁ and m₂ (m₁>m₂) have equal kinetic energies, the momentum of body having mass m₁ is __________ the momentum of body having mass m₂.

During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.

The maximum efficiency of a lifting machine is

Newton's second law motion __________ a relation between force and mass of a moving body.

The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.

The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as

The mechanical advantage of a lifting machine is the ratio of

Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

A lift moves downwards with an acceleration of 9.8 m/s². The pressure exerted by a man on the floor of the lift is zero.

Mass moment of inertia of a uni form thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

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.

The unit of mass moment of inertia in S.I. units is kg-m².

The unit of mass moment of inertia in S.I. units is kg-m².

The unit of mass moment of inertia in S.I. units is kg-m².

The centre of gravity of an equilateral triangle with each side a, is __________ from any of the three sides.

Static friction is always __________ dynamic friction.

Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is

According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.

The point, through which the whole weight of the body acts, irrespective of its position, is known as

If the body falls freely under gravity, then the gravitational acceleration is taken as

The centre of oscillation and centre of suspension for a compound pendulum are interchangeable.

Non-coplaner concurrent forces are those forces which

Two bodies of masses m₁,and m₂ are hung from the ends of a rope, passing oyer a frictionless pulley as shown in the figure below. The acceleration of the string will be

The periodic time of one oscillation for a simple pendulum is(where l = Length of the pendulum.)

The total time taken by a projectile to reach maximum height and to return back to the ground, is known as time of flight.

The polygon law of forces states that if a number of forces, acting simultaneously on a particle, be represented in magnitude and direction by the sides a polygon taken in order, then their resultant is represented in magnitude and direction by the closing side of the polygon, taken in opposite direction.

The acceleration of a particle moving with simple harmonic motion is __________ at themean position.

The distance, between the point of projection and the point where the projectile strikes the ground, is known as range.

A body will begin to move down an inclined plane if the angle of inclination of the plane is __________ the angle of friction.

The friction experienced by a body, when in motion, is known as

The loss of kinetic energy during elastic impact is zero.

In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.

Two bodies of masses m₁,and m₂ are hung from the ends of a rope, passing oyer a frictionless pulley as shown in the figure below. The acceleration of the string will be

For a self locking machine, the efficiency must be

A smooth cylinder lying on a __________ is in neutral equilibrium.

The velocity of a particle moving with simple harmonic motion is __________ at the mean position.

The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as

When a particle moves along a circular path with uniform velocity, there will be no tangential acceleration.

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.)

Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity