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A cyclist is riding a circular path of radius 5m with a speed of 10m/sec. What is the change in velocity when he has travelled through a semi-circle?
A cyclist is riding a circular path of radius 5m with a speed of 10m/sec. What is the change in velocity when he has travelled through a semi-circle?
The change in velocity of the cyclist when he has travelled through a semi-circle can be calculated using the formula Vf^2 = Vi^2 + 2ad, where Vf is the final velocity, Vi is the initial velocity, a is the acceleration and d is the displacement. In this case, the initial velocity is 10 m/s, final velocity is also 10 m/s because he is travelling in a circle with a constant speed and no acceleration, and displacement is the length of the circumference of half the circle, which is pi*r. So, the change in velocity is 0 m/s.