Question

A train is 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 :

(A) parabola

(B) straight line for sometime & parabola for the remaining time

(C) straight line

(D) variable path that cannot be defined

Answer 1

Correct option (C) straight line

Explanation:

Relative to the person in the train, acceleration of the stone is ‘g’ downward, a (acceleration of train) backwards.

According to him: x = 1/2at², Y = 1/2gt²

=> X/Y = a/g => g/ax => straight line.