Light from the sun reaches Earth in 8.3 min. The velocity of light is 3.00 108 m/s. Given this info, how would you determine how far the Earth is from the sun?
Velocity is defined as the rate of travel, and can be found using the distance formula.
Rearranging this formula we can solve for distance given velocity and time of travel.
We are given velocity and time, and so can solve for distance, but if we plug in the values given;
We can see that the units do not match up. Since seconds are the SI unit for time, we will need to convert 8.3 minutes to seconds.
Now our units work out and we can solve for distance.