An object is dropped from rest. Its v - t graph is ______________.

The pressure on a square plate is measured by measuring the force on the plate and the length of the sides of the plate by using the formula p =\(F\over l^2\) .If the maximum errors in the measurement of force and length are 4% and 2% respectively, then the maximum error in the measurement of pressure is _________________

One degree of arc is equal to_______

Rate of change of momentum of an object is equal to _______________.

Two bodies with kinetic energies in the ratio of 4: 1 are moving with equal linear momentum. The ratio of their masses is _______________.

A stationary particle explodes into two particles of masses m₁ and m₂, which move in opposite directions with velocities v₁ and v₂. The ratio of their kinetic energies E₁/E₂ is ______________

A block of mass M is attached to the lower end of a vertical spring. The spring is hung from a ceiling and has force constant value k. The mass is released from rest with the spring initially unstretched. The maximum extension produced in the length of the spring will be ____________.

A long spring when stretched by 2 cm its potential energy is U. If the spring is stretched by 10 cm. then the potential energy of the spring is _______________.

A projectile has initially the same horizontal component of velocity as it would acquire if it had moved from rest with uniform acceleration 1 ms^-2? for half a minute. If it reaches the maximum height of 90 m, the angle of, projection is (g =10 ms^-2).

In an explosion, a body breaks up into two pieces of unequal masses. In this ____________.

A particle is dropped from a height h. A constant horizontal velocity is given to the particle. Taking g to be constant everywhere, kinetic energy E of the particle with respect to time z is correctly shown in ____________.

Unit of work is ____________.

Which of the following is the dimension of coefficient of friction?

A jet engine works on the principle of ______________.

Which one of the following motions on a smooth plane surface does not involve force?

Which of the following force tends to stopthe moving object?

When a horse pulls a wagon, the force that causes the horse to move forward is the force?

___________ system of units was accepted by the scientists of the general conference on weights and measures.

A shell, in flight explodes into four unequal parts. Which is conserved?

Water stored in a dam possesses _______________.

If a circle with 10 m radius and angle 60° at centre, then what will be the length of arc?

When a mass is rotating in a plane about a fixed point, its angular momentum is directed along

Two equal masses m₁ and m₂ are moving along the same straight line with velocities 5ms^-1 and -9 ms^-1 respectively. If the collision is elastic, then calculate the velocities after the collision of m₁ and m₂ respectively

If the potential energy of the particle is \(\alpha -\frac { \beta }{ 2 } { x }^{ 2 }\), then force experienced by the particle is

Planck's constant (h), speed of light in vacuum (c) and Newton's gravitational constant (G) are taken as three fundamental constants. Which of the following combinations of these has the dimension of length?