Discussion Forum



1)

A speed of 14 metres per second is the same as :


A) 28 km/hr

B) 46.6 km / hr

C) 50.4 km/hr

D) 70 km/hr

E) 51.9 km/hr

Answer:

Option C

Explanation:

$14$ m/sec $=\left(14\times\frac{18}{5}\right)$ km/hr = 50.4 km/hr.