Any intelligent person, in mathematics? please help ..... 10pts correct ans?
1) The rotor of the helicopter is 16 meters long and rotating 120 rpm. / min. (Revolutions per minute)) Find the angular speed of the rotor. b) Find the linear speed of the rotor. 2) mass suspended from the spring oscillates in simple harmonic motion. Weight added two cycles per second and the distance between the highest and lowest point point vibration is 10 cm. Find the equation of the form y = a * sin (w * t), which gives the distance Maass from his resting position as a function of time. Thanks in advance
either ur super lazy to look into the textbook or the subject has not yet learned. I can not numeric answer. Ure learning not so. please at least mathematics themselves. 1) 1 full rotation is 2pi radians. angular velocity is measured radian per second. 120 r / min = 2 rev per second. angular velocity = 2 * 4pi = 2pi rad / s. see now I give the numerical answer. 1b), linear velocity is the angular speed * radius. convert feet to 16 feet, and multiply by 4pi. (will give the unit m / s., but I do not know if you can leave in feet / sec. sound, simply wrong. well if ure in the U.S..) Btw, I'm not sure if the 16 feet of one or both sides of the rotor. Whenever on both sides (ie, the length of the rotor), split to 2 2) y = sin (wt) = amplitude = 10 cm = angular velocity w = 2 * 2pi = 4pi easy. Now, give me ten marks.
Force Fin with Oscillating Blade
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