Question

Given that the speed of of light (in a vacuum) is about 3.0 x 10^8 meters per seconds, how far does light travel in two weeks.

Answer 1

d = Speed × Time

d

=

3

×

10

8

m/s

×

1 week

d

=

3

×

10

8

m/s

×

1

week

×

7 days

1

week

d

=

3

×

10

8

m/s

×

7

days

×

24 hrs

1

day

d

=

3

×

10

8

m/s

×

7

×

24

hrs

×

60 min

1

hr

Explanation: