- #1
billllib
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- 2
- Homework Statement
- Answer the following questions involving the speed of light. (Assume that the speed of light is 300,000,000 meters/second. Also ignore any relativistic effects on time and length, because we have not covered those yet. In other words, the calculations below are intended to be straightforward time and distance calculations.)
(a) The circumference of the Earth at the equator is 40,075 km. If you could travel at the speed of light, how many times could you go around the Earth in one second?
- Relevant Equations
- ##d = vt##
I think the answer should be## c = (300,000,000 ~meters/second) ##
## 300,000 km = \frac {300,000,000 ~ \rm{m/s}} {1000 ~\rm{km}}##
## d = vt ##
## d = 40,075 km ##
##t = \frac d v#### 40075 km / 300 000 km/s =0.1336 s ##
Why is the answer 7.5?
An help appreciated
## 300,000 km = \frac {300,000,000 ~ \rm{m/s}} {1000 ~\rm{km}}##
## d = vt ##
## d = 40,075 km ##
##t = \frac d v#### 40075 km / 300 000 km/s =0.1336 s ##
Why is the answer 7.5?
An help appreciated