16. A Jet airliner is crossing the United States from New York to San Francisco going at a velocity
of 870 km/hr. West. What is its relative velocity if it is traveling through the Jet Stream's velocity of 300
km/hr. East?
A. 1170 km/hr.
B. 570 km/hr.
C. 870 km/hr
D. 300 km/hr.