- #1
negation
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Homework Statement
You toss a protein bar to your hiking companion located 8.6m up at 39° slope. Determine the initial velocity vector so the bar reaches your friend moving horizontally.
The Attempt at a Solution
assuming the projectile lands on the friend at the apex of the trajectory
8.6 cos 39° = 6.683m = x
8.6 sin 39° = 5.41215m = y
vyf^2 - vyi^2 = 2g(yf - yi)
vyi = 10.299ms^-1
vyi = vi sin 39° = 10.299
vi = 10.299/sin 39° = 16.365ms^-1