A train in standing on a platform, a man inside a compartment of a train drops a stone. At the same instant train starts to move with constant acceleration. The path of the particle as seen by the person who drops the stone is:

Options

A. parabola
B. straight line for sometimes & parabola for the remaining time
C. straight line
D. variable path that cannot be defined

Answer

C

Explanation

Relative to the person in the train acceleration of the stone is 'g' downward a (acceleration of train) backwards.
According to him : `x=1/2 at^(2), Y=1/2 g t^(2)`
`rArr X/Y=a/grArr Y=g/a xrArr `straight line