Q. 1

The dimensions ML A. work done by a force

B. linear momentum

C. pressure

D. energy per unit volume.

Answer :

(a) work done by the force:

work done = force × distance

= [ML1T-2] * [L]

work done = ML2T-2

(b) linear momentum:

p = mv

= [M] [LT-1]

Linear momentum = MLT-1

(c) pressure:

= /L-2

pressure = ML-1T-2

(d) energy per unit volume

E = ML-1T-2

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