A plane leaves Chicago headed for Los Angeles at 520 mph. One hour later, a second plane leaves Los Angeles headed for Chicago at 620 mph. If the air route from Chicago to Los Angeles is 1800 miles, how long will it take (after the first plane takes off) for the first plane to pass the second plane? (Round your answer to two decimal places.) Need the h. and mi. please and thanks
the planes are approaching at 520+620=1140 mph
By the time the 2nd plane takes off, the distance between the planes is only 1800-520=1280 miles
At those speeds, they cover the distance in 1280/1140 = 1.123 hours
I expect you can now answer the question.
To find out how long it will take for the first plane to pass the second plane, we need to consider their relative speeds.
The first plane is traveling at a speed of 520 mph, while the second plane is traveling at a speed of 620 mph. This means that the first plane is gaining on the second plane at a rate of 620 - 520 = 100 mph.
Since the distance between the two planes is 1800 miles, we can calculate the time it will take for the first plane to catch up to the second plane by dividing the distance by the relative speed:
Time = Distance / Relative Speed
Time = 1800 miles / 100 mph
Time = 18 hours
Therefore, it will take 18 hours (after the first plane takes off) for the first plane to pass the second plane.