Q7 of 53 Page 228

Draw a diagram to show the motion of a body whose speed remains constant but the velocity changes continuously.

A body moving in a circular path having uniform speed is a true example where speed remains constant but velocity changes because every point, the direction changes at every point and is tangentially to the circular path.


More from this chapter

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5

Does the motion of second’s hand of a watch represent uniform velocity or uniform speed?

 6

A cyclist travels a distance of 4 km from P to Q and then moves a distance of 3 km at right angle to PQ. Find his resultant displacement graphically.

 8

A car is moving on a straight road with a uniform acceleration. The following table gives the speed of the car at various instants of time.


(i) Draw the shape of speed-time graph representing the above sets of observations.


(ii)Find the acceleration of the car.

 9

How can you calculate the following?

(i) Speed from distance-time graph?


(ii) Acceleration from velocity-time graph.


(iii) Displacement from velocity-time graph.