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?

Answer 1

The rocket that carried the Curiosity Rover to Mars traveled at a speed of 21,000 miles per hour. This speed to the nearest mile per second is 75,600,000 miles per second.

Answer 2

The speed of the rocket carrying the curiosity rover to mars is 21000 miles per hour, its speed to the nearest mile per second is 5.83 miles per second.

Given,

Speed of the rocket=21000 miles per hour.

To find,

the speed to the nearest mile per second.

Solution:

• Speed is equal to the ratio of the distance covered by an object and the time taken by the object to cover that distance.
• $Speed=\frac{Distance}{Time}$.
• Its S.I. unit is m/sec.
• 1 hour=60 minutes.
• 1 minute=60 seconds.
• 1 hour=(60X60) seconds.
• 1 hour=3600 seconds.

Speed of the rocket=21000 miles per hour.

Speed of the rocket in miles per seconds,

$=\frac{21000}{3600} miles/second\\=\frac{210}{36}miles/second\\=5.83 miles/second.$

The speed of the rocket is 5.83 miles per second.

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