A circular park has a radius of 1 km. A man starting from the center of park, walking towards East and going along the circumference of the park reaches the North gate. What is his displacement?
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a
2 km
b
1.57 km
c
1 km
d
2.57 km
answer is C.
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Detailed Solution
Displacement is the shotest distance between initial and final positions .S the displacement is 1 km due north .