Question

What are the S.I. and C.G.S. units of force ? Give a relationship between them.

Answer 1

1. Force: Force is an external agent capable of changing the state of rest or motion of a particular body.
2. S.I. unit: It is the metric system used universally as a standard for measurements.
3. C.G.S unit: It is the centimeter-gram-second system of the unit.
4. Newton is the S.I. unit and Dyne is the C.G.S. unit of force.

The relation between Newton and Dyne is,

$1N=1kg\times 1m/s^2$

Since, $1kg=1000gand1m=100cm$

$$\begin{gathered} 1N=1000g\times 100cm/s^2 \\ =1000\times 100\times g\times cm/s^2 \\ ={10}^{5}gcm/s^2 \end{gathered}$$

Therefore,$1\mathrm{N}={10}^5\mathrm{dyne}$.