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Question
A man goes 100 m North then 100 m East and then 20 m North and then 100√2 m South West. Find the displacement.
A man goes 100 m North then 100 m East and then 20 m North and then 100√2 m South West. Find the displacement.
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Solution
The correct option is C 20 m North
The total displacement is the summation of all the position vectors.
Also note that 100√2 South West can be written as
−100^i−100^j
d=100^j+100^i+20^j+(−100^i−100^j)
=20^j
The total displacement is the summation of all the position vectors.
Also note that 100√2 South West can be written as
−100^i−100^j
d=100^j+100^i+20^j+(−100^i−100^j)
=20^j
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