(a) Two ice skaters on frictionless ice, each having, by fortunate coincidence,
ID: 2234568 • Letter: #
Question
(a) Two ice skaters on frictionless ice, each having, by fortunate coincidence, the same mass m and arm length L/2, approach along parallel paths separated by distance L. Each is moving at velocity v relative to the earth. As they pass, they clasp hands. (1) What will be the linear velocity of their CM after-wards? (Show the equation.) (2) What will be the angular velocity of the system afterwards? (b) Suppose one skater is moving v and the other 2v before they meet. Find the velocity of their CM and their angular velocity afterwards. (c) Suppose both skaters are initially moving v, but one has mass m and the other 2m. What point do they rotate about after they meet? What is the linear velocity of this point? What is the angular velocity of the system?Explanation / Answer
1) 0 as total momentum is 0, 2) a)2v/L b) 3v/L c) 3v/L
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.