A suitable unit for gravitational constant is:

1. $kg\text{-\hspace{0.17em}}m{\sec }^{-1}$

2. $N{m}^{-1}\sec$

3. $N{m}^{2}k{g}^{-2}$

4. $kgm{\sec }^{-1}$

The unit of angular acceleration in the SI system is 

1. $Nk{g}^{-1}$

2. $m{s}^{-2}$

3. $rad{s}^{-2}$

4. $mk{g}^{-1}K$

In $$\(S= a+bt+ct^2,~S\) is measured in metres and \(t\) in seconds. The unit of \(c\) will be:

Joule-second is the unit of :

1. Work

2. Momentum

3. Pressure

4. Angular momentum

The density of wood is $0.5gm/cc$ in the CGS system of units. The corresponding value in MKS units is :

1. 500

2. 5

3. 0.5

4. 5000

Mach number is equal to one when velocity of object is equal to:

1. Velocity of light

2. Velocity of sound $(332m/\sec )$

3. $1km/\sec$

4. $1m/\sec$

Volt/metre is the unit of 

1. Potential

2. Work

3. Force

4. Electric field intensity

The unit of surface tension in SI system is

1. $Dyne/c{m}^2$

2. $Newton/m$

3. $Dyne/cm$

4. $Newton/m^2$

The velocity of a particle depends upon as $v=a+bt+c{t}^2$; if the velocity is in $m/\sec$, the unit of a will be 

1. $m/\sec$

2. $m/{\sec }^2$

3. $m^2/\sec$

4. $m/{\sec }^3$

$Erg-m^{-1}$ can be the unit of measure for 

1. Force

2. Momentum

3. Power

4. Acceleration