20 kg, -ve sense

20 kg, + ve sense

10 kg, + ve sense

10 kg, -ve sense

A. 20 kg, -ve sense

g sinθ

g cosθ

g tanθ

None of these

Equal to

Less than

Greater than

None of these

Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction

Ratio of limiting friction and normal reaction

The friction force acting when the body is just about to move

The friction force acting when the body is in motion

Remain horizontal

Slant up towards direction of pull

Slant down towards direction of pull

None of the above

Newton's first law of motion

Newton's second law of motion

Newton's third law of motion

None of these

^{2}/3

^{2}/5

^{2}/3

^{2}/5

n

n²

2n

2n - 1

^{2}

^{2}

^{2}

^{2}

Both the balls undergo an equal change in momentum

The change in momentum suffered by rubber ball is more than the lead ball

The change in momentum suffered by rubber ball is less than the lead ball

None of the above

g. cos² β/2u². sin (α + β). cos α

2u². sin (α + β). cos α/g. cos² β

g. cos² β/2u². sin (α - β). cos α

2u². sin (α - β). cos α/g. cos² β

Force

Work

Power

Velocity

_{1} - v_{2})/(u_{1} - u_{2})

_{1} - u_{2})

_{1} - u_{2})/(v_{1} - v_{2})

(u₂ + u₁)/(v₂ + v₁)

Zeroth order

First order

Second order

Third order

Limiting friction

Kinematic friction

Frictional resistance

Dynamic friction

All the forces are equally inclined

Sum of all the forces is zero

Sum of resolved parts in the vertical direction is zero (i.e. ΣV = 0)

None of these

(BD³/12) - (bd³/12)

(DB³/12) - (db³/12)

(BD³/36) - (bd³/36)

(DB³/36) - (db³/36)

30°

45°

60°

90°

If a system of coplanar forces is in equilibrium, then their algebraic sum is zero

If a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero

The algebraic sum of the moments of any two forces about any point is equal to moment of the resultant about the same point

Positive and negative couples can be balanced

Inward

Outward

Towards front

Towards back

Direction of the axis of rotation

Magnitude of angular displacement

Sense of angular displacement

All of these

r/2

2r/3

r/A

3r/2

Weight

Velocity

Acceleration

Force

2n³

2n

n²

3n² Where n = number of joints in a frame

_{1} - m_{2})/(m_{1} + m_{2})

_{1} - m_{2})/(m_{1} + m_{2})

_{1} + m_{2})/(m_{1} - m_{2})

_{1} + m_{2})/(m_{1} - m_{2})

Downwards at its upper end

Upwards at its upper end

Perpendicular to the wall at its upper end

Zero at its upper end

P × OA

P × OB

P × OC

P × AC

Coplanar concurrent forces

Coplanar non-concurrent forces

Like parallel forces

Unlike parallel forces

h/(kG² + h²)

(kG² + h²)/h

h²/(kG² + h²)

(kG² + h²)/h²

Equal to the moment of the couple

Constant

Both of above are correct

Both of above are wrong

The centre of heavy portion

The bottom surface

The midpoint of its axis

All of the above