# C H A P T E R 5 Dynamics of Uniform Circular Motion

CHAPTER 5 Dynamics of Uniform Circular Motion

5.4 Banked Curves 5.4 Banked Curves Why exit ramps in highways are banked?

5.4 Banked Curves Q: Why exit ramps in highways are banked?

5.4 Banked Curves Q: Why exit ramps in highways are banked? A: To increase the centripetal force for the higher exit speed.

5.4 Banked Curves Why exit ramps in highways are banked?

FN cos = mg 5.4 Banked Curves Why exit ramps in highways are banked?

FN cos = mg 5.5 Satellites in Circular

Orbits 5.5 Satellites in Circular Orbits

5.5 Satellites in Circular Orbits

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.

Global Positioning System (GPS) 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. 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. Synchronous Satellites

Synchronous Satellites These satellites move around their orbits in a way that is synchronized with the rotation of the earth.

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. 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.

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 5.6 Apparent Weightlessness

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? 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

As she orbits the earth, this NASA astronaut floats around in a state of apparent weightlessness.

Artifical Gravity 5.7 Vertical Circular Motion

5.7 Vertical Circular Motion 5.7 Vertical Circular Motion

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