Honors Physics
Chapter 7 Quiz # 2
Circular Motion, Gravitation & Satellites
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1. A plane is flying at 450.0 km/h in a vertical circle of radius = 3.700 km. If the plane has a mass of
2000. kg, to the nearest Newton, what is the magnitude of the force on the plane at the top of the
circle?
2. Four 1.000 x 106 kg masses are arranged in a square, 84.00 meters on a side. To the nearest ten
thousandth of a Newton, what is the magnitude of the force on the mass in the lower left hand corner?
3. What would be the force on a 5652 kg mass put at the center of the square?
4. A 2000. kg car rounds a curve with a radius of curvature of 60.0 meters at a speed of 43.0 km/h. What
is its coefficient of friction (to 3 decimal digits)?
5. A 3000. kg satellite orbits the Earth in a circular orbit 16,013 km above the Earth's surface To the
nearest Newton, what is the force acting on it?
6. A 5.0000 x 10 4 kg shuttle orbits the Earth in a circular orbit 25,998 km above the Earth's surface. To
the nearest m/sec, what is its tangential speed?
7. A new mysterious asteroid (full of kryptonite) has been discovered in our solar system. From
astronomical observations the asteroid’s period of revolution is 16,19.3 Earth days. To the nearest 100.
km, how far is the kryptonite – bearing asteroid from Earth? Careful on this one!!!