Q57 of 139 Page 43

A body is moving uniformly in a straight line with a velocity of 5 m/s. Find graphically the distance covered by it in 5 seconds.

V = 5m/s


T = 5 sec


On applying formula, we get


Distance covered = 25m


More from this chapter

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55

A body with an initial velocity x moves with a uniform acceleration y. Plot its velocity-time graph is a straight line?

 56

Given alongside is the velocity-time graph for a moving body :

Find (i) Velocity of the body at point C.


(ii) Acceleration acting on the body between A and B.


(iii) Acceleration acting on the body beyween B and C.

 58

The speed-time graph of an ascending passenger lift is given alongside.

What is the acceleration of the lift :


(i) During the first two seconds?


(ii) between second and tenth second?


(iii) during the last two seconds?

 59

A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows :











Time (s)



Speed (m/s)



0


2


4


6


8


10



4


8


12


16


20


24



Draw the speed-time graph by chooding a convenient scale. From this graph :


(i) Calculate the acceleration of the car.


(ii) Calculate the distance travelled by the car in 10 seconds.