Question

The rocket that carried the Curiosity Rover to Mars traveled at a speed of 21,000 miles per hour. What is this speed to the nearest mile per second?
A. 6 miles per second
B. 350 miles per second
C. 1,260,000 miles per second
D. 75,600,000 miles per second

Answer 1

without an explanation your answer is 75,600,000

but if u want a explanation than here:

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You convert 21,000 mph into mps i.e. miles per second

so, you divide 21000 by 60x60 or 3600

⇒21000/3600

⇒5.83 mps

or

approximately 6 mps

Answer 2

Answer:

there are 60 minutes per hour and 60 seconds per minute

60x 60 = 3600 seconds her hour

21000/3600 = 5.83 miles per second

Step-by-step explanation: