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College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Can you please show me how to get the answer for both of these?
1. Set the angle to 5 radians and the
2. Setup the same scenario you had in #1, but set the angular acceleration to be 0.30 rad/s2. Predict how fast the ladybug will rotate (ωf) after 5.0 s. (Show your calculations.)
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- Please answer, thanks. Dynamics..arrow_forwardWorksheet for Exploration 10.2: Constant Angular Acceleration Equation Time: 2.76 By now you have seen the equation: e = Bo+ wo*t + 0.5°a*?. Perhaps you have even derived it for yourself. But what does it really mean for the motion of objects? This Exploration allows you to explore all three terms in the equation: the initial angular position by changing 8, from 0 radians to 6.28 radians, the angular velocity term by changing wo from -15 rad/s to 15 rad/s, and the angular acceleration by changing a from -5 rad/s² to 5 rad/s. Restart. Answer the following questions (position is given in meters and time is given in seconds). How does changing the initial angular position (Oo) affect the motion of the object? a. b. How does changing the initial angular velocity (Wo) affect the motion of the object? c. How does changing the angular acceleration (A) affect the motion of the object? d. Can you get the object to change direction? i. Try different combinations of initial angular velocity and…arrow_forwardShown is the angular position of a potter’s wheel.a. What is the angular displacement of the wheel between t = 5 s and t = 15 s?b. What is the angular velocity of the wheel at t = 15 s?c. What is the maximum speed of a point on the outside of the wheel, 15 cm from the axle?arrow_forward
- Please solve #5arrow_forwardJust explain concepts, formulas, theories as if you were to solve.... A hoop and a solid disk both have the same radius and mass and negligible thickness. Assume that they are both rotating with the same constant angular speed. Which has the higher rotational kinetic energy? If you see an object rotating, is there necessarily a net nonzero torque acting on it? Why or why not? A skater rotates quickly on the ice. He pushes his arms out. What happens to his angular speed? Why? A 100 gram meter stick has a wad of clay on one end of it. The stick is supported from a fulcrum point 33 1/3 cm from the clay. What is the clay's mass? A student sits on a rotating stool holding two 3.0 kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg m2 and is assumed to be constant. The student then pulls in the objects horizontally to 0.30 m…arrow_forwardAnswer the THREE questions in the problem. Show solutions too. And include illustration.. Please answer the three questions.arrow_forward
- A flywheel whose moment of inertia /= 200 lb-ft2 is spinning at 180 RPM. For a flywheel, KE = Iw2/2, where w is the angular velocity, rad/s. Let g = 32.2 ft/s². Step 1 How high above the surface of the earth, in ft, would a 60 lb mass have to be raised to have its potential energy equal to the kinetic energy of the flywheel? h = i ftarrow_forwardA disk is rotating on a horizontal axis as shown in the figure. Answer the following questions if you pull out at A and push in at B along the axis of the disk.What is the direction of the torque acting on the disk? What is the direction of the initial angular momentum vector for the disk? The applied torque causes the wheel's axis (or angular momentum vector) to move. From the front view, what is the direction of motion of the L vector? A disk is rotating on a vertical axis as shown in the figure. Answer the following questions if you push in at A and pull out at B along the axis of the disk. What is the direction of the torque acting on the disk? What is the direction of the initial angular momentum vector for the disk? The applied torque causes the wheel's axis (or angular momentum vector) to move. From the front view, what is the direction of motion of the L vector?arrow_forwardhow would I find the last parts of the question, (c and d) ?arrow_forward
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