Physics · Unit 2 · Linear motion and force · Linear motion
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A 2.0 kg object is launched vertically upward from ground level. The graph shows how its total mechanical energy varies with time during the flight. What does the graph indicate about energy transformations during the motion?
A 2.5 kg object moves along a horizontal surface. The graph shows how its kinetic energy varies with time during a 10 s interval. What can be deduced about the net force acting on the object during the interval 4 s to 7 s?