Question

A car travels 2.1km south in 7.0min , its velocity in SI units is:?

Answer 1

Hi....

here is your answer:

VELOCITY = $\frac{displacement}{time}$

velocity of car= $\frac{2.1}{7}$
= 0.3 km/ min

$\frac{.3 \times 1000}{60}$ = $\boxed{5 m/s}$

$\underline{\textbf{SI UNIT OF VELOCITY IS }}$ $\underline{\textit{m/s}}$

Answer 2

answer is 5 m/s.
if you think how? then look,
first first you convert 2.1 km into metre that is 2100 metre.now you convert 7 min into second that is 420 sec.

now if you divide 2100/420 then you get your answer in S.I unit -5m/s.