Question

The Earth goes around the Sun 1 time per year. If the distance of the path is 2.72 million miles, how fast is the Earth moving around the Sun in miles per hour?

Answer 1

163.2 million miles per hour (2.72x60) = 163.2

Answer 2

`310.5(miles)/(hr)`

Explanation:

Earth's movement around the Sun is constant, so its expressed by:
`d=vt`.

However the problem is asking the speed in miles per hour, to do that we need to transform the time from years to hours.

We know that 1 year equals 8760 hours. Then, we replace all values in the equation and isolate
`v`:

`d=vt\\v=(d)/(t) \\v=(2.72x10^(6)miles )/(8760hours) = 310.5(miles)/(hr)`

Therefore, the speed of the Earth around the Sun is
`310.5(miles)/(hr)`

PD: million is equivalent to
`10^(6)`