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**urgent help with 2 dynamics problems**

Hey guys, here are some problems i need help with bad. For 11.9 I got no idea what i am doing here. Here is 11.9:

11.9

Here is 11.15. Here i know how to do a problem with basically a projectile shooting at an angle from the ground but not of one from an incline surface. How would i set this up different? I beleive i got to do the acceleration and velocity of each components and then find t, and then i can find d, but that incline is throwing me off. ANy help is appreciated, thanks!