If an aeroplane travels at 5000 m.p.h for an hour and 45 minutes, what distance does it travel?
1 answer:
Answer:
8750 miles
Explanation:
The airplane travels with uniform motion (=constant velocity), so we can calculate the distance it travels using the formula for uniform motion:
where
v is the speed of the plane
t is the time elapsed
In this problem:
v = 5000 mi/h is the speed of the plane
t = 1 h 45 min is the time elapsed
We have to convert this time into hours; we know that 45 minutes corresponds to 3/4 of an hour, that is 0.75 hours. So, the time here is
Therefore, the distance covered is:
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So, the time t that the mass takes to move through a distance of 2 A can be found by using the proportion
and solving for t we find
b. 1.25T
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