A speed of 14 meters per second is the same as?

A) 45.5km/h

B) 50.4 km/h ✓

C) 52.2km/h

D) 55.5 km/h

Let x be 14 meters per second which is needed to convert into kilometers per hour
⇒⇒x = 14msx = 14ms
⇒141 km10001 hr3600⇒141 km10001 hr3600
⇒14×36001000kmhr⇒14×36001000kmhr=50.4kmhr