3. An aeroplane takes off at an angle of 60° to the
horizontal. if the velocity of the plane is
200km/h, calculate its horizontal and vertical
component of its velocity?
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4
Answer:
200cos60 & 200sin60 respectively.
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Horizontal component
vx=v cos 60°
=200×1/2
=100 km/hr
vertical component
vy=sin 60°
=200×✓3/2
=100 ✓3 km/hr
we can have two mutually perpendicular components of a vector other than x-direction or y-direction.
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