A space craft is at 4525 km above the earth’s surface. If it descends at the rate of 5 km per minute. What will be its position after 9 hour

Question

A space craft is at 4525 km above the earth’s surface. If it descends at the rate of 5 km per minute. What will be its position after 9 hours?

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Kim Cúc 5 years 2021-08-11T08:15:20+00:00 1 Answers 388 views 0

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  1. thachthao
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    2021-08-11T08:16:54+00:00
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    Answer: 1,825 km above the surface

    Step-by-step explanation:

    Find out the number of minutes in 9 hours:

    = 9 * 60 mins

    = 540 mins

    The space craft is descending at 5km per minute. In 540 minutes it would have descended:

    = 540 * 5

    = 2,700 km

    Its new position would be:

    = Old position – Change in position

    = 4,525 – 2,700

    = 1,825 km above the surface

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