Question

Let A be the area swept by the line joining the earth and the sun during Feb 2008 the area swept by the same line during the first week of that month is

Answer 1

According to Kepler's Laws the area swept by the earth per unit time is constant.

Feb 2008 has 29 days

Area swept in 29 days is A
Area swept in 1 day is A/29
Area swept in 7 days is 7A/29

Answer 2

Let A be the area swept by the line joining the earth and sun during february 2008, then the area swept by the same line during the first week of the month is 7A/29.

1) According to the Kepler's law of heavenly bodies, area swept by the earth per unit time is constant.

2) So, as 2008 is a leap year, the number of days in feb is 29.

3) Area swept per day is A/29

4) So area swept in a week is 7A/29.