Kinematics Question 349

Question: A person moves 30 m north and then 20 m towards east and finally 302 m south-west direction. The displacement of the person from the origin

Options:

A) 10 m along north

B) 10 m along south

C) 10 m along west

D) Zero

Show Answer

Answer:

Correct Answer: C

Solution:

OA=0i+30j,

AB=20i+0j,

BC=302cos45i302sin45j

=30i30j
Net desplacement,

OC=OA+AB+BC=10i+0j OC  =10m



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