An aeroplane is moving with uniform speed of 100km h along the circumference of a cirle .What is the change in velocity in half the revolution?(karnataka cet 2000)
Please help me to solve the problem.
Dear student,
Half the revolution is pir*radius
Velocity=displacement/time
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Askiitians Expert
Sagar Singh - IIT Delhi
initial direction and final direction are opposite. hence,change in velocity = +200kmh or -200kmh
The magnitude of velocity will not chnage. Only its direction will be reversed. Since, its direction depends on the tangent of the circle at that point.
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