question_answer

Which of the following option correctly describes the variation of the speed v and acceleration 'a' of a point mass falling vertically in a viscous medium that applies a force F = -kv, where 'k' is constant, on the body? (Graphs are schematic and not drawn to scale)                                                                            [JEE ONLINE 09-04-2016]

A)  

B)       

C)  

D)       

Correct Answer: D

Solution :

[d]