IME

Practice session

A projectile is launched from the foot of a plane inclined at $\beta = 30^\circ$ to the horizontal. The launch angle to the horizontal is $\alpha = 60^\circ$ with initial speed $v_0 = 20\text{ m/s}$. Taking $g = 10\text{ m/s}^2$, what is the range $R$ measured along the incline?

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