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A cyclist is riding with a speed of 27 km/h. As he approaches a circular turn on the road of radius 80 m, he applies brakes and reduces his speed at the constant rate of 0.50 m/s every second. What is the magnitude and direction of the net acceleration of the cyclist on the circular turn ?

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0.86 m/s2; 54.46° with the direction of velocity Speed of the cyclist, Radius of the circular turn, r = 80 m Centripetal acceleration is given as: The situation is shown in the given figure: Suppose the cyclist begins cycling from point P and moves toward point Q. At point Q, he applies the breaks...
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0.86 m/s2; 54.46° with the direction of velocity

Speed of the cyclist, 

Radius of the circular turn, r = 80 m

Centripetal acceleration is given as:

The situation is shown in the given figure:

Suppose the cyclist begins cycling from point P and moves toward point Q. At point Q, he applies the breaks and decelerates the speed of the bicycle by 0.5 m/s2.

This acceleration is along the tangent at Q and opposite to the direction of motion of the cyclist.

Since the angle between is 90°, the resultant acceleration a is given by:

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