C H A P T E R

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C H A P T E R   5Dynamics of Uniform Circular
Motion
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5.4 Banked Curves
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5.4 Banked Curves
Why exit ramps in highways are banked?
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5.4 Banked Curves
Q Why exit ramps in highways are banked?
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5.4 Banked Curves
Q Why exit ramps in highways are banked?
A To increase the centripetal force for the
higher exit speed.
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5.4 Banked Curves
Why exit ramps in highways are banked?
FN cosq mg
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5.4 Banked Curves
Why exit ramps in highways are banked?
FN cosq mg
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5.5 Satellites in Circular Orbits
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5.5 Satellites in Circular Orbits
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5.5 Satellites in Circular Orbits
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Orbital Speed of the Hubble Space Telescope
Determine the speed of the Hubble Space Telescope
orbiting at a height of 598 km above the earths
surface.
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Global Positioning System (GPS)
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Global Positioning System (GPS)
A network of 24 satellites, which can be used to
determine the position of an object to within 15
m or less.
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Global Positioning System (GPS)
A network of 24 satellites, which can be used to
determine the position of an object to within 15
m or less.
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Synchronous Satellites
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Synchronous Satellites
These satellites move around their orbits in a
way that is synchronized with the rotation of the
earth.
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Synchronous Satellites
These satellites move around their orbits in a
way that is synchronized with the rotation of the
earth. A synchronous satellite orbits the earth
once per day on a circular path that lies in the
plane of the equator.
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Synchronous Satellites
These satellites move around their orbits in a
way that is synchronized with the rotation of the
earth. A synchronous satellite orbits the earth
once per day on a circular path that lies in the
plane of the equator.
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Synchronous Satellites
These satellites move around their orbits in a
way that is synchronized with the rotation of the
earth. A synchronous satellite orbits the earth
once per day on a circular path that lies in the
plane of the equator.
Digital satellite system television uses such
satellites as relay stations for TV signals
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5.6 Apparent Weightlessness
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5.6 Apparent Weightlessness
Figure 5.18 shows a person on a scale in a freely
falling elevator and in a satellite in a circular
orbit. In each case, what apparent weight is
recorded by the scale?
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5.6 Apparent Weightlessness
Figure 5.18 shows a person on a scale in a freely
falling elevator and in a satellite in a circular
orbit. In each case, what apparent weight is
recorded by the scale?
Answer 0
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As she orbits the earth, this NASA astronaut
floats around in a state of apparent
weightlessness.
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Artifical Gravity
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5.7 Vertical Circular Motion
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5.7 Vertical Circular Motion
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5.7 Vertical Circular Motion