JEE Main Physics question
A train carriage moves along the -axis with a uniform acceleration . An observer in the train sets a ball in motion on the frictionless floor of the carriage with the velocity relative to the carriage. The direction of makes an angle with the -axis. Let be an observer standing on the ground outside the train. The subsequent path of the ball will be
Answer: (B),(C)
Solution
The floor is frictionless, so no horizontal force acts on the ball from the (ground) frame: relative to (inertial), the ball moves with constant velocity — a straight line. Relative to the
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