A JEE - PROBLEM !

Classical Mechanics Level 3

A train is moving along a straight line with a constant acceleration ' a a ' . A boy is standing in the train throws a ball forward with a speed of 10 m s − 1 10 \text{ m s}^{-1} , at an angle of 6 0 ∘ 60^{\circ} to the horizontal . The boy has to move forward by 1.15 m 1.15 \ m inside the train to catch the ball back at the initial height. Find the value of the acceleration ' a a ' in ms − 2 \text{ms}^{-2} ?


The answer is 5.

Rishabh Tiwari by Rishabh Tiwari , 20, India

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