Is there a type of object that would spend more energy rotating than moving linearly? If so, which object? If not, which type of object will have the largest portion of rotational kinetic energy and how much will it have? Moment inertia
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Is there a type of object that would spend more energy rotating than moving linearly? If so, which object? If not, which type of object will have the largest portion of rotational kinetic energy and how much will it have?
Moment inertia
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- A thin cylindrical ring starts from rest at a height h1 = 77 m. The ring has a radius R = 28 cm and a mass M = 3 kg. a) Given h2 = 47 m, what is the velocity of the ring at point 2 in m/s? b) What is the ring's rotational velocity in rad/s at point 2? c) After passing point 2 the hill becomes frictionless and the ring's rotational velocity remains constant. What is the linear velocity of the ring at point 3 in m/s?Q: determine the rotational kinetic energy and the moment of inertia: Given: Time the can of refried beans takes to reach the bottom of the incline = 0.63 seconds Mass of can of refried beans = 425 grams Radius of can of refried beans = 3.81cm height between the high and low point = 5.32cm Distance traveled = 30.55cm Coefficient of Friction=0.1376How do you do these two ?
- A baseball pitcher throws the ball in a motion where there is rotation of the forearm about the elbow joint as well as other movements. If the linear velocity of the ball relative to the elbow joint is 21.9 m/s at a distance of 0.470 m from the joint and the moment of inertia of the forearm is 0.500 kg-m2, what is the rotational kinetic energy of the forearm? rotational kinetic energy: J Question Credit: OpenStax College Physics 2:52 PM 47°F ^ * 1)) ENG 12/1/2021Is there a type of object that would spend more energy rotating than moving linearly? If so, which object? If not, which type of object will have the largest portion of rotational kinetic energy and how much will it have?Consider a situation where an ice skater spins without friction in the ice with her arms outstretched. Then he picks up his arms to his body, reducing his moment of inertia. Its angular momentum is preserved, so as it reduces its moment of inertia, it increases its angular velocity and rotates faster. Compared to hers initial rotational kinetic energy, what is hers final rotational kinetic energy like? explain with fundamentals of physical
- Given a mass of 380 grams, and a rotational speed 180 rpm, calculate the maximum rotational kinetic energy for the following three shapes: a disk, a sphere and a thin rod. Both, the disk and the sphere have a radius of 20 cm, and the length of the thin rod is 40 cm. If the same mass is shaped as a hoop with a radius of 20 cm, would be the rotational kinetic energy greater, or smaller than the kinetic energies calculated for the other 3 shapes? Check your prediction - calculate the rotational kinetic energy for that shape, and compare your results. Was your answer consistent with your expectations?A 300gr ball and a 700gr ball are connected by a 60cm long, thin rod of mass 100gr. The structure rotates about its center of mass at 100 rotations per minute. Calculate the rotational kinetic energy of the system.