CBSE Class 11-science Answered
A person moves on a semicircular track of radius 40 m if he starts at one end of the track and reaches other end of the track find distance travelled & magnitude of displacement of person.
Asked by yashwantjain12 | 02 Dec, 2015, 10:40: AM
Expert Answer
Given:
Radius, r = 40 m
Distance = πr =
The distance travelled by the person is 125.7 m.
Displacement is distance between final and initial points which is the diameter.
Displacement = 2×r = 2×40 m = 80 m
The magnitude of displacement of person is 80 m.
Answered by Faiza Lambe | 02 Dec, 2015, 12:19: PM
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