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VladimirAG [237]
3 years ago
8

a plane flies from Addis Ababa to Gamble is 400km. in 2 hrs, then straight back to Gamma is 200km. in 1hrs what is the average s

peed, average velocity, total distance and total displacement​
Physics
1 answer:
kramer3 years ago
5 0

Answer:

a) Average speed = 200 Km/hr

b) Average velocity = 0 m/s

c) Total distance = 800 Km

d) Total displacement = 0 Km

Explanation:

a) Let the speed of the plane from Addis Ababa to Gamble be represented by S_{1}, and from Gamble to Addis Ababa by S_{2}.

Average speed = \frac{S_{1} + S_{2} }{2}

S_{1} = \frac{distance}{time} = \frac{400}{2}

        = 200 Km/hr

S_{2} = \frac{distance}{time} = \frac{200}{1}

       = 200 Km/hr

Average speed = \frac{200 + 200}{2}

        = 200 Km/hr

b) Velocity = \frac{displacement}{time}

Average velocity = \frac{total displacement}{total time taken}

Since the plane flies from Addis Ababa to Gamble, then back to Addis Ababa, its total displacement is zero.

So that,

Average velocity = 0 m/s

c) Total distance = 400 Km + 400 Km

                           = 800 Km

d) Total displacement = 400 Km + (-400 Km)

                           = 0 Km

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