Crazy kinematicsClassical Mechanics Level pending
A train is moving along a straight line with a constant acceleration a. A boy standing in the train throws a ball with a speed of 10m/s at an angle of 60 with the horizontal. the boy has to move forward by 1.15m inside the train to catch the ball back at the initial height. The acceleration of the train in m/s is (round off the answer to nearest integer)?