Question

A flag is mounted on a car moving due North with velocity of $20km/hr$. Strong winds are blowing due East with velocity of $20km/hr$. The flag will point in direction

• A. East
• B. North-East
• C. South-East
• D. South-West

Answer 1

The correct option is C South-East

Given,
${\overrightarrow{v}}_{\omega }=20\hat{i}$
${\overrightarrow{c}}_{\omega }=20\hat{j}$


Velocity of wind with respect to car:
So

${\overrightarrow{v}}_{w/c}={\overrightarrow{v}}_w-{\overrightarrow{v}}_c=20\hat{i}-20\hat{j}$
This is in south-east direction.
Final Answer: (c)