Top tower of height 40 m a ball is projected upward with a speed of 20 metre per second at an angle of elevation of 30° the ratio of the total time taken by the ball to hit the ground to its time of flight is
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Top tower of height 40 m a ball is projected upward with a speed of 20 metre per second at an angle of elevation of 30° the ratio of the total time taken by the ball to hit the ground to its time of flight
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