(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

How long would it take a laser beam to go to the Moon and back if the distance to the Moon is 3.8 x 10^8m?

2. Relevant equations

a=2d/t^2

d=v1 t + 1/2a t^2

3. The attempt at a solution

a=2d/t^2

9.8m/s(Gravity)=2(7.6x10^8)/t^2

t^2=15.2x10^8/9.8

t= 12453.99698 secs

P.S the answer at the back of the book says 2.6sec

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# Homework Help: Laser to Moon

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