Question

The distance covered a moving body over time is represented graphically in Fig. 6.9. Find its speed.

Answer 1

speed =dist/time let's consider last point
dist=3m time =4s so speed =3/4=7.5m/s

Answer 2

The speed of the body is 0.75 m/s.

Explanation:

The attached figure shows a distance time graph. We know that the slope of distance time graph gives the speed of the body. From the attached figure,

Distance, d = 3 m

Time taken, t = 4 s

The total distance covered divided by total time taken is called speed of a body. It is given by :

$v=\dfrac{d}{t}$

$v=\dfrac{3\ m}{4\ s}$

v = 0.75 m/s

So, the speed of the body is 0.75 m/s. Hence, this is the required solution.

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