Physics

Physics, 20.09.2019 15:30, chloerojassbusiness

Acircus performer launches himself from a springboard with an initial velocity of 21 m/s at an angle of 75 toward a platform hanging 20 m above the ground, a horizontal distance of 15 m away from the springboard. does he land on the platform or fall back down to the ground?

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Physics, 20.09.2019 09:20, veheca

Check if i got the right answer.a circus performer launches himself from a springboard with an initial velocity of 21 m/s at an angle of 75 degrees toward a platform hanging 20m above the ground, a horizontal distance of 15 m away from the springboard. does he land on the platform or fall back down to the ground? make and model with graphs and motion maps, including the maximum height he reaches, the time of flight and his final velocity (direction and magnitude) just before landing. show all work and explain your reasoning. take g= 9.8 m/s^2so i did the math and i want to know if the distance the circus performer reached was 20.63 meters. meaning he went over the platform (aka missed the platform).

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Physics, 07.11.2019 20:31, wonderwonder2748

Acannon fires a 0.794 kg shell with initial velocity vi = 9 m/s in the direction θ = 42 ◦ above the horizontal. the acceleration of gravity is 9.8 m/s 2 shell’s trajectory curves downward because of gravity, so at the time t = 0.499 s the shell is below the straight line by some vertical distance. your task is to calculate the distance ∆h in the absence of air resistance. first, find what does ∆h depend on (besides g): 1. it depends only on the initial angle θ, and does not depend on the flight time t or the initial velocity vi . 2. it depends on everything: the flight time t, the initial angle θ, and the initial velocity . it depends on the flight time t and the initial angle θ, but does not depend on the initial velocity vi . 4. it is a constant and does not depend on the flight time t or the initial velocity vi or the initial angle θ. 5. it depends only on the initial velocity vi , and does not depend on the flight time t or the initial angle θ. 6. it depends on the flight time t and the initial velocity vi , but does not depend on the initial angle θ. 7. it depends only on the flight time t, and does not depend on the initial velocity vi or the initial angle θ. 8. it depends on some data not given in the problem. 9. it depends on the initial angle θ and the initial velocity vi , but does not depend on the flight time t.question 8, chap 104, sect 6. part 2 of 2 10 points and now calculate the ∆h. answer in units of m.

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