Question

Classify the following measures as scalars and vectors :
(i) `40` seconds , (ii) `100 m^(2)`, (iii) `30 gm//cm^(3)`
(iv) `60 km//hr` , (v) `56 m//s` towards south

Answer 1

(i) `40` seconds represents time, which is scalar.
`100 m^(2)` represents an area, which is scalar.
(iii) `30 gm//cm^(3)` represents density, which is scalar.
(iv) `60 km//hr` represents speed, which is scalar,
(v) `56m//s` towards south represents velocity, which is a vector.