Due date: Reading; Physics LAB Manual PHY 116 pg. 51 – pg. 52 Work and Kinetic Energy Try the on-line application ‘air track simulator’….

Two gliders mover toward each other on a frictionless linear air track (see Fig.1). Glider 1 has a mass of M1(=0.50kg) and an initial velocity of V11(=+4.0m/s). Glider 2 has a mass of M2(=0.50kg) and an initial velocity of V12(=-2.0m/s)

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Due date: Apr. 31. Reading; Physics LAB Manual PHY 116 pg. 51 – pg. 52 Work and Kinetic EnergyTry the on-line application ‘air track simulator’.http://www.mrwaynesclass.com/teacher/Impulse/SimFriction/home.html2. Quiz; [total 100 pts]Two gliders move toward each other on a frictionless linear air track (See Fig. 1). Glider 1 has amass of mi (= 0.50 kg) and an initial velocity of Vil (=+ 4.0 m/s). Glider 2 has a mass of mz (= 0.50kg) and an initial velocity of Viz (= – 2.0 m/s).(I)Assume that Glider 1 and Glider 2 undergo an elastic collision*. After the collision, thefinal velocities of Glider 1 and Glider 2 are Vfi = -2.0 m/s and Vfz= +4.0 m/s respectively.Calculate the change in total kinetic energy of the gliders.(II)Assume that Glider 1 and Glider 2 undergo a completely inelastic collision*. After thecollision, the final velocity of the coupled Glider (1+2) are Vfi+2=1 m/s. Calculate thechange in total kinetic energy of the gliders.(III)Calculate the work done during each of the collisions (I) and (II) above. Use the relationbetween Work and Change of Kinetic energy. Also clearly show if the work is positive ornegative for completely inelastic collision.(*Hint: Elastic collision means the total kinetic energy and total momentum of the gliders are conserved incollision. Completely inelastic collision means only the total momentum of the glides is conserved in collisionand, after collision, Glider 1 and Glider 2 move together as a unit)Glider 1Glider 2(mi=0.50kg)(mz=0.50kg)Vil =+ 4m/sViz = – 2m/sFig 1. Air track system before collision

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