Question

For this question, let ma and mb represent masses; l1, l2, l3, and x represent lengths; and t1 and t2 represent times.

A mass density is defined as a mass per unit volume and volume has the dimensions of [length] 3.

Which of the following could be mass densities?

ma / [(l1)(l2){x / t1} t2]

[(mb)(x) / [(l1)2(l2)2]

[{ma}{mb}] / [(l1)(l2)(l3)]

[mb2] / [(l1)2)(l2)2]

Answer 1

Its the first option :)