A cyclist starts from the centre O of a circular park of radius 1km , reaches the edge P of the park , then cyclesalongthe circumference and returns to the centre along QO as shown in figure . If the round trip takes 10 min. what is the (a) net displacement . (b) average velocity and (c) average speed of the cyclist ?

A cyclist starts from the centre O of a circular park of radius 1km ,

1.	A cyclist starts from the centre O of a circular park of radius 1km , reaches the edge P of the park , then cyclesalongthe circumference and returns to the centre along QO as shown in figure . If the round trip takes 10 min. what is the (a) net displacement . (b) average velocity and (c) average speed of the cyclist ?
Answer» <html><body><p></p>Solution :(a) Net displacement =zero as initial and final <a href="https://interviewquestions.tuteehub.com/tag/position-1159826" style="font-weight:bold;" target="_blank" title="Click to know more about POSITION">POSITION</a> of the cyclist is same <br/> (b) Average <a href="https://interviewquestions.tuteehub.com/tag/velocity-1444512" style="font-weight:bold;" target="_blank" title="Click to know more about VELOCITY">VELOCITY</a> `=("Net displacement")/("Total time taken")`=zero <br/> (c) Total distance travelled `=OP+PQ+QO` <br/> `=OP+1//4(2pir)+QO` <br/> `=(1+1+(1)/(4)xx2xx(22)/(7)xx1)`km <br/> `=(25)/(7)km` <br/>Average speed `=("Total path <a href="https://interviewquestions.tuteehub.com/tag/length-1071524" style="font-weight:bold;" target="_blank" title="Click to know more about LENGTH">LENGTH</a>")/("Total timetaken")` <br/> `=(25//7)/(10//60)km <a href="https://interviewquestions.tuteehub.com/tag/h-1014193" style="font-weight:bold;" target="_blank" title="Click to know more about H">H</a>^(-1)` <br/> `=21.43 km h^(-1)` .</body></html>