8. Centripetal Forces & Gravitation

Acceleration Due to Gravity

Introduction to Free-Fall and the Acceleration due to Gravity

Acceleration Due to Gravity: Slo-mo ball drop

You decide to visit Santa Claus at the north pole to put in a good word about your splendid behavior throughout the year. While there, you notice that the elf Sneezy, when hanging from a rope, produces a tension of 395.0 N in the rope. If Sneezy hangs from a similar rope while delivering presents at the earth’s equator, what will the tension in it be? (Recall that the earth is rotating about an axis through its north and south poles.)

Titania, the largest moon of the planet Uranus, has 1/8 the radius of the earth and 1/1700 the mass of the earth. (b) What is the average density of Titania? (This is less than the density of rock, which is one piece of evidence that Titania is made primarily of ice.)

<p>How far would you have to be above Earth’s surface for g to be ½ of its surface value?</p>

<p>You stand on the surface of a mysterious planet with a mass of 6×10&lt;sup&gt;24&lt;/sup&gt;kg and measure the surface gravity to be 7 m/s&lt;sup&gt;2&lt;/sup&gt;. What must the radius of the planet be?</p>

 Suppose the lengths of your upper arm, forearm, and hand are 30 cm, 25 cm, and 15 cm, respectively. Using the information on centers of mass from Figure 7.31, calculate the torque from gravity on your arm (including the hand) when it is outstretched, horizontally. 

Analyzing the Apollo 15 Feather and Hammer Drop - A Basic, Introductory Free-Fall Problem

Find mass of planet in free fall

Gravitational Acceleration Physics Problems, Formula & Equations

The mass of Venus is 81.5% that of the earth, and its radius is 94.9% that of the earth. (b) If a rock weighs 75.0 N on earth, what would it weigh at the surface of Venus?

Gravitation (4 of 17) Calculating Acceleration Due to Gravity (g)

Titania, the largest moon of the planet Uranus, has 1/8 the radius of the earth and 1/1700 the mass of the earth. (a) What is the acceleration due to gravity at the surface of Titania?

Anderson Video - Hole Through the Center of the Earth

Freely Falling Objects and Acceleration Due to Gravity

At what distance above the surface of the earth is the acceleration due to the earth’s gravity 0.980 m/s^2 if the acceleration due to gravity at the surface has magnitude 9.80 m/s^2 ?

The mass of Venus is 81.5% that of the earth, and its radius is 94.9% that of the earth. (a) Compute the acceleration due to gravity on the surface of Venus from these data.

Measure Acceleration Due to Gravity

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