The distance between the earth and the moon is about 384,000 km. calculate the time it takes for light to travel from the moon to earth? Physics 1D Motion Displacement and Velocity 1 Answer Nam D. · Stefan V. Jan 2, 2018 Answer: But the answer is #~~1.28s# Explanation: The speed of light (#c#) is constant everywhere, it is #299","792","458 m"/"s=299","792.458km"/"s# Therefore, it takes #(384","000)/(299","792.458)~~1.28s# for the light to travel from the moon to earth. Related questions What is the difference between distance and displacement? Is displacement directly proportional to velocity? How does average velocity differ from instantaneous velocity? How can I calculate the change of velocity? How do speed and velocity differ from each other? How do velocity and acceleration differ? How do displacement and distance differ? Can displacement be negative? Can velocity be zero if accelerating? Explain why displacement is a vector quantity? See all questions in Displacement and Velocity Impact of this question 1129 views around the world You can reuse this answer Creative Commons License