Answer to Question #260490 in Physics for denkies

Question #260490

A projectile is to be launched at an angle of 30 degrees so that it falls beyond a point of length 20m.

what is the range of value of the initial velocity so that the projectile falls between the points m and n

Expert's answer

The velocity is

"v=\\sqrt{Rg\/\\sin(2 \\theta)}=15\\text{ m\/s}."

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