Question

Q. 2. The graph given below shows the positions of a body at different times. Calculate the speed of
the body as it moves from
(1) A to B (ii) B to C and (iii) C to D.
Distance (cm)->
С
5
Time (s)

Answer 1

Explanation:

(i) The distance covered from A to B is (3−0)=3cm

Time taken to cover the distance from A to B=(5−2)=3s

Speed= TimeDistanc

Speed= 3sec3cm=1cm/s

(ii) The speed of the body as it moves from B to C is zero.

(iii) The distance covered from C to D is (7−3)=4cm

Time taken to cover the distance from C to D=(9−7)=2s

Speed=Time

Distance= 2sec4cm =2cm/s