| One side of
the roof of a building slopes up at 43.0°. A roofer kicks a round,
flat rock that has been thrown onto the roof by a neighborhood
child. The rock slides straight up the incline with an initial
speed of 15.0 m/s. The coefficient of kinetic friction between the
rock and the roof is 0.405. The rock slides 10.0 m up the roof to
its peak. It crosses the ridge and goes into free fall, following a
parabolic trajectory above the far side of the roof, with
negligible air resistance. Determine the maximum height the rock
reaches above the point where it was kicked. m |
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One side of the roof of a building slopes up at 43.0°. A roofer kicks a...
A worker kicks a flat object lying on a roof. The object slides up the incline 10.0 m to the apex of the roof, and flies off the roof as a projectile. What maximum height (in m) does the object attain? Assume air resistance is negligible, v; = 15.0 m/s, uy = 0.430, and that the roof makes an angle of a = 44.5° with the horizontal. (Assume the worker is standing at y = 0 when the object is...