subject
Physics, 12.03.2020 21:34 toledanomariap43bxm

Puck A, of inertia m, is attached to one end of a string of length l, and the other end of the string is attached to a pivot so that the puck is free to revolve on a smooth horizontal surface. Puck B, of inertia 8m, is attached to one end of a string of length l/4, and the other end of the string is attached to a second pivot so that B is also free to revolve. In each case, the puck is held as far as possible from the pivot so that the string is taut and then given an initial velocity v perpendicular to the string. Part AHow does the magnitude of the angular momentum of puck A about its pivot compare with that of puck B about its pivot?frac{K_{rot ,B}}{K_{rot ,A}} = ? frac{L_{theta ,B}}{L_{theta ,A}} = ?Part BHow does the rotational kinetic energy of A compare with that of B?

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 17:30
Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?
Answers: 3
question
Physics, 22.06.2019 11:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 3
question
Physics, 23.06.2019 04:40
Abody covers a semicircle of radius 7cm in 5s .find its linear speed
Answers: 1
question
Physics, 23.06.2019 07:30
5. why should the electrons be placed separate from each other (why not together)?
Answers: 2
You know the right answer?
Puck A, of inertia m, is attached to one end of a string of length l, and the other end of the strin...
Questions
question
History, 18.11.2020 20:10
question
Mathematics, 18.11.2020 20:10
question
Biology, 18.11.2020 20:10
question
English, 18.11.2020 20:10
question
Mathematics, 18.11.2020 20:10
question
Mathematics, 18.11.2020 20:10
question
Chemistry, 18.11.2020 20:10
Questions on the website: 13722366