Q A1.     The following is the distance-time table of an object in motion:                 

        

Time in seconds  Distance in metre
0 0
1 1
2 8
3 27
4 64
5 125
6 216
7 343

 

    (a)     What conclusion can you draw about the acceleration? Is it constant, increasing, decreasing, or zero? 

Answers (1)
D Devendra Khairwa

From the table, the relation between time and the distance can be seen.

                                                                       s\ =\ t^3

Thus the velocity of the particle is increasing with time.      

                                                                     v\ =\ \frac{ds}{dt}\ =\ 3t^2

and                                                               a\ =\ \frac{dv}{dt}\ =\ 6t                    

Hence acceleration increases linearly with time.  

Exams
Articles
Questions