5 Momentum 5.B Impulse Scenario The different boxes are pushed from resto frictionless surface for a time with differing forces PARTA Using Representations Identify the box system by circling the objects inside the system with a dotted circle The dots below represent the two bomes. Draw free body diagrams showing and labeling the forces (not components) exerted on each bow Daw the relative lengths of all vectors to reflect the relative magnitudes of all the forces. Identify the external forces PART : Forces that are external to the system include: PARTC: Sketch a graph of the net external forces for each box on the same asis by using two different colors and providing a key. Net External Force (Newtons) Time (s) MARTD Quantitative Analysis Using the equation for the area of a rectangle. A bit, w e two equations, one with words and one with units for the area of the rectangle between the external forces timeline and the x-ads on the graph cated in Part The area under anet extemal forces, time graph represents the (Hint: Check units PARTE Re-represent the data above by creating a momentum diagram for each box on the same set of axes by using two different colors and providing a key. (A momentum diagram represents the momentum of an object or system by showing the mass of the object as the width of bar on the chart, and the velocity of the object as the height of the bar. Box's Initial Momentum 1 Impulse Applied to Box Box's Final Momentum i + PARTR Argumentation Is the work done on the first box while speeding up greater than, less than, or the same as the work done on the second box while speeding up? Greater than Less than Same PARTG: Is the impulse given to the first box while speeding up greater than less than or the same as the impulse given to the second box while speeding up? Justify your ranking Greater than Less than Same 1 132 Content Return to