Question

The earth rotates 360° about its axis in
about 24 hours. By how much degree
will it rotate in 7 hours 30 minutes?​

Answer 1

Answer:

1hour=60minutes.7hours=420minutes.30minutes=30+60=90minutes

Answer 2

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• Earth Rotates 360° in 24 hours.

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• Degree of Rotation in 7 hrs 30 min

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In 24 hrs it rotates 360°

In 1 hr it rotates = 360°/24 = 15°

In 1/2 hr it rotates = 15/2 = 7.5°

Then,

1 hour = 60 minutes

1/2 hr = 30 minutes

So,

Degree of Rotation in 7 hrs 30 min

=> Total time = 7 hr + 1/2 hr

=> 7×12 + 7.5

=> 84 + 7.5

=> 91.5°