A ball is thrown up vertically and returns back to the thrower in 6 sec. assuming that there is no air friction plot velocity time graph. From the graph calculate (i) deceleration (ii) acceleration (iii) Total distance covered by stone (iv) Average velocity

The velocity time graph for the first six seconds is given below:

 

 

(i) Deceleration is given as the slope of the graph for the first 3 seconds.

 

 

(ii) Acceleration is given as the slope of the graph for the last 3 seconds.

 

 

(iii) Total distance covered is given as the area under the curve.

 

 

(iv) Average velocity is given as