A cyclist starts from centre O of a circular park of radius 1km and moves along the path OPRQO as shown Fig. 4.3. If he maintains constant speed of 10ms–1, what is his acceleration at point R in magnitude and direction?

A cyclist starts from centre O of a circular park of radius 1km and mo

1.	A cyclist starts from centre O of a circular park of radius 1km and moves along the path OPRQO as shown Fig. 4.3. If he maintains constant speed of 10ms–1, what is his acceleration at point R in magnitude and direction?
Answer» Since the INITIAL position coincides with the final position. So, the net displacement of the cyclist = zeroAverage speed of the cyclist = TOTAL TIME takenTotal distance TRAVELLED = 10OP+PQ+QO km MIN −1 = 20π+4 ×60kmh −1 =21.4kmh −1

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A cyclist starts from centre O of a circular park of radius 1km and moves along the path OPRQO as shown Fig. 4.3. If he maintains constant speed of 10ms–1, what is his acceleration at point R in magnitude and direction? ​

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A cyclist starts from centre O of a circular park of radius 1km and moves along the path OPRQO as shown Fig. 4.3. If he maintains constant speed of 10ms–1, what is his acceleration at point R in magnitude and direction?