Question: A 2-kg object changes its velocity as a force acts on it for 5 seconds. It changes its velocity from 4 m/s east to

A 2-kg object changes its velocity as a force acts on it for 5 seconds. It changes its velocity from 4 m/s east to 6 m/s west as shown. Complete the work and kinetic energy bar chart for this process. The bar heights should be in correct proportion to one another. Explain your reasoning. Initial Final system During system energy KE W ext energy Bar chart key 4 m/s 5 seconds later: 6 m/s T T + | KE KE Kinetic energy W Work done by ext external forces T T T T + 0

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