a horse travels 3/4 of a circumference and its diameter in 200km .Find the distance and the displacement...?
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Answer:
(1) Distance = 942km
(2) Displacement = 282.84km
solution :
(1) Distance:
3/4 of the circle,
distance = 3/4(2πr)
= 3/2(3.14)(200)
= 942km
(2) Displacement:
by Pythagoras theorem, displacement = r²+r²
= 200²+200²
= 40000+40000
= 80000
= 282.84km
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