A B V1 V1

QUESTION: A bowling ball ( m₁ = 3.00 kg and radius of r = 50.0 mm) which has an angular and linear velocity of 57.1 rad/s and 2.85 m/s, respectively, rolls without sliding and hits a slender Bar B of mass m_2 = 1.00 kg and length L = 0.12 m, which is initially at rest as shown in the following figure. Neglecting the friction between the sphere and the bar, and knowing the coefficient of restitution between the sphere and the bar is 0.2, determine (1) the angular velocity of Sphere A and Bar B immediately after impact, and (2) the linear velocities of sphere A and bar B immediately after impact (and at their centroids). ANSWER: Answers I got are: (they are wrong :< need help) Angular velocity of Sphere A immediately after impact: -/+ 3.34 rad/s (both are wrong) Angular velocity of Bar B immediately after impact: 8.09 rad/s  The linear velocity of sphere A immediately after impact (and at the centroid) : 0.16 rad/s2 or 0.485 rad/s2 (both wrong) The linear velocity of Bar B…

9. 2) The target is a thin 4.3-kg circular disk of radius r= 273 mm that can rotate freely about the z axis. Initially it is at rest. A 21-g bullet, traveling at v = 630 m/s, strikes the target at A and becomes embedded in it. The dimensions are di = 219 mm and d2 = 90 mm. If the impact time is 0.02 s, determine the average impact force between the bullet and the target. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point, and proper Sl unit. Take g = 9.81 m/s?. 'pe