4.3 please 4.1: What energy is internal to the system (the ball in free-fall)? Is any workinjected or removed from the system during free-fall? What happens to theball in free-fall after it collides with the floor? Describe the ball's motionafter the collision. Where does the energy go during this collision?How much total energy and momentum are in the system prior to thecollision with the ground? (There are a couple of ways to figure these out).4.2:4.3:Now let's consider the system after the collision with the ground. Howmuch total energy and momentum is in the system after the collision withthe ground? (Again, there are a couple of ways to figure these out).Was this an inelastic or elastic collision? Why?How much energy and momentum was lost in the collision? Where did itgo? Discuss this in terms of the free-fall system doing work on thesurrounding environment.

Step-1 There are three cases after the ball collides with the ground, Case-1 If the ball rebounds…

Now let's consider the system after the collision with the ground. How much total energy and momentum is in the system after the collision with the ground? (Again, there are a couple of ways to figure these out). • Was this an inelastic or elastic collision? Why? How much energy and momentum was lost in the collision? Where did it go? Discuss this in terms of the free-fall system doing work on the surrounding environment.

Now let's consider the system after the collision with the ground. How much total energy and momentum is in the system after the collision with the ground? (Again, there are a couple of ways to figure these out). • Was this an inelastic or elastic collision? Why? How much energy and momentum was lost in the collision? Where did it go? Discuss this in terms of the free-fall system doing work on the surrounding environment.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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