Question

VID TU.O.P.04. My Notes Adid slides toward a motionless stick on a frictionless surface figure below). The disk strikes and adheres to the stick and they rotate together, pivoting around the nail Angular momentumn is conserved for this inelastic collision because the surface is frictionless and the unbalanced external force at the nail exerts no torque. Before Alter Nail (pivot) Consider a situation where the disk has a mass of 51.5 g and an initial velocity of 30.5 m/s when it strikes the stick that is 1.45 m long and 2.25 kg at a distance of 0.100 m from the nail (a) What is the angular velocity (in rad/s) of the two after the collision (Enter the magnitude) 0.000 rad/s (b) What is the kinetic energy (in ) before and after the collision? - 0888 ) before and after the collision (Enter the magnitude (c) What is the total linear momentum (in kg Poetore - 157 kgm/s Poner - x kg. m/s

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Answer 1

The answer for above problem is explained below.

Kineke energ Aftes Collisi'on w2 k After KE Afta X I u2 Here, MR 3 2 Ms md 2 51.5 x 10 xo.m3-25[.45m 3 5.15 x16 m [1.54687 m I And 0.019 from esuah'on 2 x 1.5734 x(0.099 ade k After X -

K Afte 7.73 x 0 Linear momen tum Aft the Collision Total Ave MRa Pattel 2. Ms-7 d Pafte 2 (51-5 xt63xOlm) 25x.45m Pater 0.019 Yad 0.091 Yod 1.63125 m 5.15 x10m Pata Pata l.6364 m x 0.099 Yad o.I62 kg m/s Pafter