Find the dimensions of

Question:

Find the dimensions of

(a) linear momentum

(b) frequency

(c) pressure

Solution:

(a) Linear momentum $=\mathrm{mv}$

Dimension $=\left[\mathrm{MLT}^{-1}\right]$

(b) Frequency $=1 / \mathrm{T}$

Dimension $=\left[\mathrm{T}^{-1}\right]$

(c) Pressure = Force/Area

Dimension $=\left[\mathrm{MLT}^{-2}\right] /\left[\mathrm{L}^{2}\right]=\left[\mathrm{ML}^{-1} \mathrm{~T}^{-1}\right]$

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