If you were to double the radius of the motion while keeping the velocity of the object fixed, what do you expect the new force to be?If you were to double the radius of the motion while keeping the angular velocity of the object fixed, what do you expect the new force to be?
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If you were to double the radius of the motion while keeping the velocity of the object fixed, what do you expect the new force to be?
4 F0, 2 F0, 1 F0, 1/2 F0, OR 1/4 F0
If you were to double the radius of the motion while keeping the
4 F0, 2 F0, 1 F0, 1/2 F0, OR 1/4 F0
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- During a steady right turn, a person exerts the forces shown on the steering wheel. Note that each force consists of a tangential component and a radially-inward component. Determine the moment exerted about the steering column at O. The moment will be positive if counterclockwise, negative if clockwise. 7.3 N 29° 15° 15° Answer: M = 440 mm i 29° 7.3 N B N.mO a. 1.4 x 1014, O b.2.4 x 1013 Od. 3.9 x 106 A satellite takes 1.5 x 104 s to complete one circular orbit around a planet. If the satellite has a mass of 1.5 x 10 kg and an orbit of radius 6.2 x 10° m, calculate its angular momentum around the planet. x 1014 kg m2/s Ob.2.4 x 1013 kg m2/s OC 6.2 x 108 kg m2/s Od.3.9 x 106 kg m/s e. 8.1 x 1011 kg m2/suestión A horizontal circular platform rotates counterclockwise about its axis at the rate of 0.867 rad/s. You, with a mass of 74.3 kg, walk clockwise around the platform along its edge at the speed of 1.07 m/s with respect to the platform. Your 20.1 kg poodle also walks clockwise around the platform, but along a circle at half the platform's radius and at half your linear speed with respect to the platform. Your 18.5 kg mutt, on the other hand, sits still on the platform at a position that is 3/4 of the platform's radius from the center. Model the platform as a uniform disk with mass 93.1 kg and radius 1.85 m. Calculate the total angular momentum of the system. total angular momentum: kg - m²/s
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- A 1 kg mass sits on the y-axis, 2 m from the x-axis. A 2 kg mass sits on the x-axis, 1 m from the y-axis. Which axis would you rotate the system about to have the least resistance to its change in motion? Group of answer choices -y-axis -x-axis -either axis would give the same resultA person rides a Ferris wheel that turns with constant angular velocity. Her weight is 526.0 N. At the top of the ride her apparent weight is 1.500 N different from her true weight. A) What is her apparent weight at the top of the ride? in N B) What is her apparent weight at the bottom of the ride? in N C) If the angular speed of the Ferris wheel is 0.0250 rad/s, what is its radius? in mLet's do this example, following the same steps that the example but with new numbers. r (0) = 4x0 8 = π rad Odot = 0.5 rad/s Odotdot 0.25 rad/s² Mass of the motorcycle is 150 kg. a. Now using the formula: ag = rö + 2rẻ what is the radial acceleration of the motorcycle? O 4.094 m/s² O 3.047 m/s² O 5.189 m/s² O 7.236 m/s² b. Let's find using the formula: tan = Note: is the derivation of the function r about 0. OOOO O 86.6 deg O 76.6 deg O 56.6 deg O 79.2 deg d. e. f. g. C. What is the magnitude of the friction force? Give your answer as an integer What is the magnitude of the normal force? Give your answer as an integer. If the path is defined by r (0) = 30². Using:tan find the angle at = rad. Give your answer with one decimal in degree. * (0) = 1/0² 0 (t) = 5t What is the magnitude r dot at t= 0.2 second? r (0) = 10² 0 (t) = 5t What is the magnitude r dot dot at t= 0.2 second?
- A ball with a radius of R_sphere and a mass of M begins at rest down a ramp without slipping occuring. as it's going down the ramp it enters a loop with a radius of R_loop at its lowest point. Which height H from the point of release for the ball, can the ball still make it around the loop without falling off the top?10 N 20 N 10 N m 0.5 m m 405 403 m² / 04.08. RA Ra With reference to the diagram, when moments are taken about RA, the sum of the anticlockwise moments is 35 Nm 30 Nm 20 Nm 25 Nm#1. Due to the conservation of angular momentum, moving mechanical parts in a spacecraft can affect the orientation and rate of angular rotation of the craft. Let us, crudely speaking, model Voyager II as a uniform disk with a mass of 720 kg and an effective radius of 1.0 meters. What is the moment of inertia of Voyager II under these assumptions? A.720kgm^2 B.580kgm^2 C.360kgm^2 D.180kgm^2 #1-1. Suppose the spacecraft in #1 is initially not rotating as a whole, and none of its compo- nents are rotating. A data tape spool with a moment of inertia of 1.25 × 10^−4 kg m^2 begins to spin at a rate of 15.5 Rad/s. What is the angular momentum of the spacecraft as a whole? A. 3.88×10^−3 kg·m^2/s B. 1.94×10^−3 kg·m^2/s C. 9.69×10^−4 kg·m^2/s D. 0.0 kg·m^2/s # 1-3. As the result of the tape spool operation, what is the magnitude of the angular speed of the spacecraft in #1-1 as a whole? A. 0.0 Rad/s B. 5.38 × 10^−6 Rad/s C. 1.07 × 10^−5 Rad/s D. 2.14 × 10^−5 Rad/s