State of Equilibrium

Q. If an object is in a state of equilibrium

1. It is at rest
2. It is in motion at constant velocity
3. It is in free fall
4. May be more than one of the above

Q.

A rain drop falling on Earth's surface is in a state of equilibrium.

1. False

2. True

Q.

A stone tied at the end of a string when whirled in a circular path with a uniform speed is

1. in linear motion.

2. in equilibrium.

3. in vibratory motion.

4. not in equilibrium.

Q.

When the metacenter of a floating body lies above the centre of gravity of the body then the body is said to be in

1. stable equilibrium state

2. unstable equilibrium state

3. positive equilibrium state

4. neutral equilibrium state

Q.

A body is in dynamic equilibrium when it is

1. possessing instantaneous velocity

2. moving with non-uniform speed.

3. in the state of rest

4. in the state of motion

Q.

A body is said to be in static equilibrium when it is

1. in the state of rest

2. moving along a circular path

3. accelerated by external force

4. moving with uniform velocity

Q.

If a block returns to its original position after slight tilt then it is in state of

1. zero equilibrium

2. equilibrium

3. weightlessness

4. None of these

Q.

Why do we need to go in same direction for uniform motion

Q.

A body is in translator equilibrium if

1. it is in uniform motion

2. resultant force on it is zero

3. it is at rest

4. it is in accelerated motion

Q.

Will a body move more in air or vaccum when weighed by a spring balance ? Give reasons for your answers

Q.

Hydrometer is based on the principle of

1. principle of superposition

2. Archimedes principle

3. principle of momentum

4. Hamiltons principle

Q.

Car 1 and car 2 are travelling with speeds 2 m/s and 5 m/s, respectively. If F1 and F2 are forces acting on car 1 and car 2 respectively then choose the correct relation between them.​

Q.

The condition for equilibrium is

1. sum of all forces acting on body should be 1

2. sum of all forces acting on body should be less than 1

3. sum of all forces acting on body should be infinite.

4. sum of all forces acting on body should be zero.

Q.

A ball is placed in a trough as shown. This can be categorised as

1. Unstable Equilibrium

2. Stable Equilibrium

3. None of these

4. Neutral Equilibrium

Q.

A body has a - 75.8 Nm moment of force, the body is describing a:

1. clockwise motion

2. anticlockwise moment

3. linear motion

4. curvilinear motion

Q. When two identical balls $b_1$ and $b_2$, which have equal masses are moving with velocities, $V$ and $2V$ respectively, the ratio of inertia and momentum of $b_1$ to $b_2$ are:

1. $1:1$ and $2:1$
2. $1:1$ and $1:1$
3. $2:1$ and $1:2$
4. $1:1$ and $1:2$

Q. When a bullet is fired from a pistol, in which direction the pistol moves (ignore the force exerted by hand)?

1. Perpendicular to the bullet's direction.
2. Opposite to the bullet's direction.
3. It will be in the same position as before.
4. Along the bullet's direction