LADYBUGS!!!! has a) Which ladybug has the greater angular velocity? b) Which ladybug has the greater tangential velocity? c) If we wanted to slow down the disk, where would the most effective location to apply a torque and in what direction? Consider the current rotation of the disk to be counterclockwise. A B
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- A 1550-kg car rounds a circular turn of radius 155 m, toward the left, on a horizontal road. Its angular momentum about the center of the turn has magnitude 2.86 x 10 kg m²/s. What is the direction of the car's angular momentum? O toward the center of the turn Overtically downward Submit Previous Answers vertically upward away from the center of the turn ✓ Correct Part B What is the speed of the car? Express your answer with the appropriate units. V= Part C for Part B for Part B undo for Part B redo for Part B reset for Part B keyboard shortcuts for Part B help for Part B Value Submit LfinaF What is the magnitude of the car's angular momentum about the center of the turn, once it's exited the turn and is on a straight stretch of the road? Express your answer with the appropriate units. Submit Units Request Answer for Part C for Part Cundo for Part C redo for Part C reset for Part C keyboard shortcuts for Part C help for Part C Units Value Request AnswerQ3. Consider two disks in essentially the same plane, and rotating about the common center O with different but constant angular velocities. Let the angular velocities by w and w'. The radii of the disks are r and r'. Two points P and P' are located at the outer edges of the disks. Assume that point O is fixed. Find the velocity and acceleration of P' relative to P at the time instant when the two points have the least separation, in the following two cases: (a) the observer is fixed to the ground, or nonrotating; (b) the observer is rotating with the unprimed system, i.e., the disk with radius r and angular velocity w. Express the results in terms of the unit vectors e; and en which rotate with the unprimed system. (Problem 2-15 in the text).During a 5.1 s time interval, a flywheel with a constant angular acceleration turns through 451 radians and acquires an angular velocity of 136 rad/s. (Assume the flywheel is rotating in the positive direction. Indicate the direction with the signs of your answers.) A.)What is the angular velocity (in rad/s) at the beginning of the 5.1 s? B.)What is the angular acceleration of the flywheel (in rad/s2)?
- Case 1: A DJ starts up her phonograph player. The turntable accelerates uniformly from rest, and takes t1 = 11.6 seconds to get up to its full speed of f1 = 78 revolutions per minute.Case 2: The DJ then changes the speed of the turntable from f1 = 78 to f2 = 120 revolutions per minute. She notices that the turntable rotates exactly n2= 13 times while accelerating uniformly. a. Calculate the angular speed described in Case 1, given as f1 = 78 revolutions per minute, in units of radians/second. b. How many revolutions does the turntable make while accelerating in Case 1? c. Calculate the magnitude of the angular acceleration of the turntable in Case 1, in radians/s^2. d. Calculate the magnitude of the angular acceleration of the turntable (in radians/s^2) while increasing to 120 RPM (Case 2). e. How long (in seconds) does it take for the turntable to go from f1 = 78 to f2 = 120 RPM?The figure shows multiple solid disks with uniform mass distribution that are spinning about its center. The mass of the disks are the same, but they have different radii, as shown. Rank the disks by the amount of energy needed to spin the disk so that the outer edge of the disk has linear velocity v, from greatest to least. Explain your reasoning. A B сI need some help. Can you walk me through how to solve this problem? To throw the discus, the thrower holds it with a fully outstretched arm. Starting from rest, he begins to turn with a constant angular acceleration, releasing the discus after making one complete revolution. The diameter of the circle in which the discus moves is about 1.9 m. If the thrower takes 1.2 s to complete one revolution, starting from rest, what will be the speed of the discus at release?
- n A golfers clubs' linear tangential velocity at contact with the ball on the tee was recorded as 42.4 m/s. Given the distance from the club head to the golfers centre of rotation as 1.58 m calculate the angular velocity (radians/s) of rotation at the point of contact to 2 decimal places. s page Answer: e here to search 18 W 8 N g P Finish attempt... ASXXCTD +1.33%The 480 gg bar is rotating as shown in (Figure 1). You may want to review (Pages 271 - 274) . Figure 1 of 1The figure shows a bar rotating around an axle in its midpoint with frequency of 120 revolutions per minute. The axle is perpendicular to the bar. The length of the bar is 2.0 meters. Part A What is the angular momentum of the bar about the axle?A 40-kg boy is standing on the edge of a stationary 30-kg platform that is free to rotate. The boy tries to walk around the platform in a counterclockwise direction. As he does: O both go around with equal angular velocities but in opposite directions. O the platform rotates in a clockwise direction while the boy goes around in a counterclockwise direction relative to the ground. O the platform rotates in a clockwise direction just fast enough so that the boy remains stationary relative to the ground. O the platform doesn't rotate.
- solve for Part DImagine that you could see a wheel spinning while speeding up, so you know that the angular velocity is (answer choice 1) , and the angular acceleration is (answer choice 2). But if instead the wheel is spinning counter clockwise and slowing down, so you know that the angular velocity is (answer choice 3) , and the angular acceleration is (answer choice 4). answer choices: out of page (positive) or into page (negative)A. A light, rigid rod of length L = 1.00 m joins two particles, with masses m_1 = 4.00 kg and m_2 = 3.00 kg, at its ends. The combination rotates in the xy-plane about a pivot through the center of the rod (see figure below). Determine the angular momentum of the system about the origin when the speed of each particle is 7.40 m/s. B. What would be the new angular momentum of the system (in kg · m2/s) if each of the masses were instead a solid sphere 13.5 cm in diameter?