Question

Question #2fd8b

Answer 1

Around `107,543` `km`/`hour`

Explanation:

Earth Orbits The Sun 365 days a year.

`Speed=(Distance)/(Time)`.

`Distance=2pir`

`Time=365days*24hr=8760hrs`

`r=au=1.496*10^8km`*

Lets take `au` as `1.5*10^8km`

Applying formula,

`Speed=(2*pi*1.5*10^8)/8760`

Lets take `pi` as `3.14`,

`Speed=(2*3.14*1.5*10^8)/8760=(942,000,000)/8760=`

`107,543(approx)` `km` `/hr`.

au= Astronomical unit - is the average distance between the sun and earth.*