Question

dimensionall formula for speed,force,preesure,work,momentum and power ​

Answer 1

Explanation:

Dimensional Formula is defined as the expression of the physical quantiy in terms of its basic unit with proper dimensions.

The dimension of mass, length and time are represented as [M],[L] and [T] respectively.

So in order to write dimensional formula of

1 Work -

Work=Force×DisplacementWork=Force×Displacement

Now keeping unit of force and displacement we get the unit of work.

Work=NmWork=Nm

Now N=kgm/s2N=kgm/s2

So,

Work=kgms2×mWork=kgms2×m

Work=kgm2s−2Work=kgm2s−2

So dimensional formula of work is

Work=ML2T−2Work=ML2T−2

2 Pressure

Pressure=ForceAreaPressure=ForceArea

Now keeping unit of force and area we get the unit of pressure.

Pressure=Nm2Pressure=Nm2

Now N=kgm/s2N=kgm/s2

So,

Pressure=kgms2m2Pressure=kgms2m2

Answer 2

Answer:

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Explanation:

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