The relationship between distance time and velocity is:

$\overline{){\mathbf{v}}{\mathbf{=}}\frac{\mathbf{d}}{\mathbf{t}}}$

Where v is velocity, d is distance, and t is time.

Speed of light, c = 3.0 × 10^{8} m/s

In the year 1178. five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon, causing a red glow in and around it. It is hypothesized that this event created the crater Giordano Bruno, which is right on the edge of the area we can usually see from Earth.

How long after the asteroid hit the Moon, which is 3.84 x 10^{5} km away, would the light first arrive on Earth in seconds?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Average Velocity concept. You can view video lessons to learn Average Velocity. Or if you need more Average Velocity practice, you can also practice Average Velocity practice problems.