Convert one solar day into second

One SOLAR DAY is equal to 86,400seconds.

The time we use for all our activities is as a result of the rotation of the Earth around the sun. SOLAR DAY on Earth refers to the measure of time it takes planet Earth to rotate at least once around its axis. It takes the Earth 24 hours to rotate around its axis, hence, the length of one solar day is 24 hours. Since 1 hour amounts to 60 minutes, and 1 minute amounts to 60 seconds, one solar day in seconds can be calculated as follows:

* 1 hour = 60 minutes

24 hours = (24 × 60) = 1440 minutes

* 1 minute = 60 seconds

1440 minutes = (1440 × 60) = 86400 seconds.

Therefore, the conversion of one SOLAR DAY, which is 24 hours in length is 86400 seconds.

Learn more: link

The answer is D.

Hope this helps!