Light travels 300,000,000 m/s
State this distance in centimeters.
Answer Options are:

1 x 10^14 cm
1 x 10^15 cm
1 x 10^17 cm
1 x 10^18 cm

1 x 10¹⁸cm

Explanation:

Given parameters:

Velocity of light  = 300,000,000cm/s

Unknown:

Distance in centimeters = ?

Solution:

To solve this problem,

  The velocity of light is 3 x 10⁸m/s

   Velocity   =  

Distance  = velocity x time  = 3 x 10⁸m/s  x 3.2 x 10⁷s

                                               = 9.6 x 10¹⁵m

             To cm;

         100cm  = 1m

 Distance  =  9.6 x 10¹⁵ x 10²   = 9.6 x 10¹⁷cm = 1 x 10¹⁸cm

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