question_answer

Observers on 10th, 5th and ground floor of a tall building measure the velocity of certain rain drop by some accurate method. Surprisingly the velocity of rain drop measured by the three observers is found to be same. This is because:

A)  there is no gravitational force acting on the drop

B)  gravitational force on the rain drop is balanced by force produced by surrounding air

C)  gravitational force on the rain drop is balanced by upward force of attraction produced by the cloud

D)  data is insufficient to predict

E)  none of the above