Mathematics, 08.10.2019 00:00 lashaaungas
This question is # 36 in stewart's et calculus book 6e. an elastic band is hung on a hook and a mass is hung on the lower end of the band. when the mass is pulled down and then released, it vibrates vertically. the equation of motion, s, where s is measured in centimeters and t≥0 in seconds, is given below. (take the positive direction to be downward.)s = 8 cos (t) + 4 sin (t)i found velocity and accelerationv(t)= -8sin(t) +4cos(t)a(t)= -8cos(t) - 4sin(t)my problem comes in the question c(c) when does the mass pass through the equilibrium position for the first time? i tired 8 cost + 4 sint =0 getting tan inverse of -8/4. then π+tan inverse of -8/4 which lead me to the answer 1.82? my second problem comes with question dd) how far from its equilibrium position does the mass travel? i don't know how to go about this part of the problem? do i use the the velocity equation set it =0 and then add π?
Answers: 2
Mathematics, 21.06.2019 22:20
Line segment eg is partitioned by point f in the ratio 1: 1. point e is at e (0, 4), and point f is at (1, 3). what are the coordinates of point g? (−1, 5) (2, 2) (3, 1) (4, 0)
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Mathematics, 21.06.2019 23:00
Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?
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Mathematics, 22.06.2019 00:30
You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25
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This question is # 36 in stewart's et calculus book 6e. an elastic band is hung on a hook and a mass...
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