A blind person moves total 100 steps such that after each 25 steps he turns through 90° towards left. If each step is 0.8 m long, then displacement of person is
Answers
Answer:
the displacement is zero as after every 25 m he turns left after 100 foots he will at the point of starting
Given : A blind person moves total 100 steps such that after each 25 steps he turns through 90° towards left.
each step is 0.8 m long,
To Find : displacement of person is
Explanation:
NORTH
WEST EAST
SOUTH
Assume that Person Start going toward North
In North Direction = 25 * 0.8 = 20 m
Left from North = West
in West Direction= 25 * 0.8 = 20 m
Left from West = South
in South Direction= 25 * 0.8 = 20 m
Left from South = East
in East Direction= 25 * 0.8 = 20 m
Total Steps = 25 + 25 + 25 + 25 = 100 Steps
Total Distance
North = 20m South = 20 m
West = 20 m East = 20 m
North And south are opposite direction
West and East Directions are opposite
Hence Man returns at same point
Displacement = Final position - Initial position
as both position are same
Hence Displacement = ZERO
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