Question

A laser was sent to the moon from the point of earth. It takes 3 minutes 20 seconds the speed of laser beam is 3 into 10 ^ 8 metre per second find the distance between the point of earth to the moon

Answer 1

Time(in seconds): 200 seconds

Speed of laser beam: 3* 10^8 metre/second

$distance = speed \div time$

distance = 3* 10^8 m / 200 seconds

= 15* 10^5 metre