Hi anyone available to help me? Here are my calculations
-2 ( v sin15) / -9.81 = 308.4m / v cos 15
v=77.787
308.4m / 77.787m/s cos 15 = t
t = 3.82958
= 77.787 sin 15 (1.91479) + 1/2 (-9.81) (1.91479^2)
which is 20.56618
then I multiplied it by 2 and got 41.13236 which was my final answer but it's wrong.
I will give brainliest

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