Question

pls draw Free body diagram

System (Ang GUARD SMEAR HIGHLIGHTER Shonnio A 2.0-kg disk traveling at 3.0 m/s strikes a 1.0-kg stick of length 4.0 m that is lying flat on nearly frictionless ice as shown in the overhead view of Figure 11.12a. The disk strikes at the endpoint of the stick Assume the collision is elastic and the disk does not deviate from its original line of motion. Find the translational speed of the disk, the translational speed of the stick, and the angular speed of the stick after the collision. The moment of inertia of the stick about its center of mass is 1.33 kg m2. distance r=2.0 m from the stick's center. SOLUTION Conceptualize Examine Figure 11.12a and imagine what happens after the disk hits the stick. Figure 11.12b shows what you might expect: the disk continues to move at a slower speed, and the stick is in both translational and rotational motion. We assume the disk does not deviate from its origi- nal line of motion because the force exerted by the stick on the disk is parallel to the original path of the disk Categorize Because the ice is friction less, the disk and stick toTm an isolated sxstem in terms of momentum and angular momentum. Ignoring the sou Figure 11.12 (Exampl- 11.9) Overhead view of a disk striking a stick in an elastic collision. (a) Before the collision, preMoi saOI Sp a stick. (b) The collision and move to the right.

Answer 1

7ven M. 29 3 M Is L 4m O = 3 (Ver) (M,tM2)n M,Ji Vem 2 ml cm 1rad ls