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22 June, 04:48

Light travels at a speed of 1.86 x 10^5 miles per second. If a light year is the distance that light travels in one year how many miles are in a light year?

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  1. 22 June, 08:30
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    Answer: 5.865696x10^12 miles

    Step-by-step explanation:

    Step 1: To calculate how many seconds are in 1 year.

    Suppose our year is a non-leap year.

    We know there are 365 days in 1 non-leap year, there are 24 hours in 1 day, there are 60 minutes in 1 hour and every minute has 60 seconds.

    So,

    The number of seconds in 1 non-leap year = 1*365*24*60*60 seconds

    The number of seconds in 1 non-leap year = 31,536,000 seconds

    Or

    The number of seconds in 1 non-leap year=3.1536x10^7 seconds

    Step 2: To calculate the distance traveled by light in 1 non-leap year.

    We know,

    Distance traveled = speed x time

    So,

    The distance traveled by light in 1 non-leap year = 1.86 x 10^5 x 3.1536x10^7

    The distance traveled by light in 1 non-leap year = 5.865696x10^12 miles

    Similarly we can find the distance traveled by light in 1 leap year taking 366 days in an year.
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