1.

A ball is thrown vertically downwards from a tower of height 60 m with a speed of 20 m/s. The y(m)−t curve of the ball is[Take g=10 m/s2, consider point of projection as origin and upward displacement as positive]

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A ball is thrown vertically downwards from a tower of height 60 m with a speed of 20 m/s. The y(m)t curve of the ball is

[Take g=10 m/s2, consider point of projection as origin and upward displacement as positive]



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