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vazorg [7]
3 years ago
6

700 miles away, to try out his luck. The ride there with the wind takes four hours. A few months later almost broke he heads bac

k, on the same plane and the same wind. The flight then, against the wind, takes five hours. What is the speed of the plane and what is the speed of the wind?
Physics
1 answer:
Black_prince [1.1K]3 years ago
8 0

Answer:

speed of plane = 157.5 mph

speed o wind = 17.5 mph

Explanation:

Distance traveled to move from one position to other is given as

d = 700 miles

time taken by it

t = 4 hr

so here the speed is given as

v_p + v_w = \frac{700}{4}

v_p + v_w = 175 mph

during his return journey we have

v_p - v_w = \frac{700}{5}

v_p - v_w = 140 mph

now from above two equations we have

v_p = 157.5 mph

v_w = 17.5 mph

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