A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air resistance is negligible, and the collision is elastic. The masses of the ball and block ar respectively, 1.7 kg and 2.3 kg, and the length of the wire is 1.27 m. Find the velocity (magnitude and direction) of the ball (a) just before the collision, and (b) just after the collision.
A ball is attached to one end of a wire, the other end being fastened to the ceiling. The wire is held horizontal, and the ball is released from rest (see the drawing). It swings downward and strikes a block initially at rest on a horizontal frictionless surface. Air resistance is negligible, and the collision is elastic. The masses of the ball and block ar respectively, 1.7 kg and 2.3 kg, and the length of the wire is 1.27 m. Find the velocity (magnitude and direction) of the ball (a) just before the collision, and (b) just after the collision.
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter11: Collisions
Section: Chapter Questions
Problem 41PQ: Initially, ball 1 rests on an incline of height h, and ball 2 rests on an incline of height h/2 as...
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