The speed of light is = 3x10^8 m/sec. How long will it take to reach Pluto, 278,000,000,000 km away?

I don't understand how to set this problem?

I am unsure if it starts like 3x10^8m/1sec

To calculate the time it would take to reach Pluto, we can use the speed of light as the conversion factor.

Given:
Speed of light = 3 x 10^8 m/s
Distance to Pluto = 278,000,000,000 km

First, we need to convert the distance from kilometers to meters, since the speed of light is in meters per second. To convert kilometers to meters, we multiply the distance by 1,000 (since there are 1,000 meters in a kilometer).

So, the distance to Pluto in meters = 278,000,000,000 km x 1,000 = 278,000,000,000,000 meters.

Next, we can use the formula:

Time = Distance / Speed

Plugging in the values, we get:

Time = (278,000,000,000,000 meters) / (3 x 10^8 m/s)

Now we can solve for time:

Time = 926,666,666.67 seconds

However, since this is a large number, it is usually more convenient to express it in more manageable units. To convert seconds to a more common unit like hours or days, we can divide the total number of seconds by the appropriate conversion factor.

For example, to convert seconds to hours, we divide the total seconds by 3,600 (since there are 3,600 seconds in one hour).

Time (in hours) = 926,666,666.67 seconds / 3,600 seconds/hour

Time (in hours) ≈ 257,407.41 hours

So, it would take approximately 257,407.41 hours to reach Pluto at the speed of light.