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Your friend went for a loop-the-loop ride at the amusement
park. Her car is upside down at the top of the loop.
how two of the three forces acting on an object in equilibrium. Redraw the diagram, showing all three forces. Label the third force .
Problems 42 through 52 describe a situation. For each, draw a motion diagram, a force-identification diagram, and a free-body diagram.
You’ve slammed on the brakes and your car is skidding to a
stop while going down a hill.
Figure shows an object’s acceleration-versus-force graph. What is the object’s mass?
If an object is at rest, can you conclude that there are no forces acting on it? Explain.
7. An object experiencing a constant force accelerates at 10 . What will the acceleration of this object be if
a. The force is doubled? Explain.
b. The mass is doubled?
c. The force is doubled and the mass is doubled?
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