8. Centripetal Forces & Gravitation

Acceleration Due to Gravity

8. Centripetal Forces & Gravitation

# Acceleration Due to Gravity - Video Tutorials & Practice Problems

On a tight schedule?

Get a 10 bullets summary of the topic1

concept

## Acceleration Due to Gravity

Video duration:

5mPlay a video:

2

Problem

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

A

5.72×10

^{13}mB

4.43×10

^{14}mC

8.17×10

^{12}mD

7.56×10

^{6}m3

example

## Find mass of planet in free fall

Video duration:

3mPlay a video:

4

Problem

ProblemHow far would you have to be above Earth's surface for g to be ½ of its surface value?

A

8.55×10

^{8}mB

2.64×10

^{6}mC

9.01×10

^{6}mD

8.13×10

^{6}m## Do you want more practice?

We have more practice problems on Acceleration Due to Gravity

### Your Physics tutor

Additional resources for Acceleration Due to Gravity

PRACTICE PROBLEMS AND ACTIVITIES (19)

- A recently discovered extrasolar planet appears to be rockier and denser than earth. It is 16 times as massive...
- What is the free-fall acceleration at the surface of (a) the moon and (b) Jupiter?
- (a) At what height above the earth is the free-fall acceleration 10% of its value at the surface?
- Titania, the largest moon of the planet Uranus, has 1/8 the radius of the earth and 1/1700 the mass of the ear...
- Titania, the largest moon of the planet Uranus, has 1/8 the radius of the earth and 1/1700 the mass of the ear...
- 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 ...
- The mass of Venus is 81.5% that of the earth, and its radius is 94.9% that of the earth. (a) Compute the accel...
- At what distance above the surface of the earth is the acceleration due to the earth's gravity 0.980 m/s^2 if ...
- You decide to visit Santa Claus at the north pole to put in a good word about your splendid behavior throughou...
- Asteroid 253 Mathilde is one of several that have been visited by space probes. This asteroid is roughly spher...
- Suppose we could shrink the earth without changing its mass. At what fraction of its current radius would the ...
- A starship is circling a distant planet of radius R. The astronauts find that the free-fall acceleration at th...
- You have been visiting a distant planet. Your measurements have determined that the planet's mass is twice tha...
- (I) What is the weight of a 74-kg astronaut (d) in outer space traveling with constant velocity?
- (II) What is the apparent weight of a 75-kg astronaut 2800 km from the center of the Moon in a space vehicle ...
- (II) Suppose the solid wheel of Fig. 11–42 has a mass of 260 g and rotates at 85 rad/s ; it has radius 6.0 cm ...
- (III) Two identical particles, each of mass m, are located on the x axis at x= +x₀ and x = -x₀.(b) At what poi...
- The rings of Saturn are composed of chunks of ice that orbit the planet. The inner radius of the rings is 73,0...
- A particle is released at a height r_E (radius of Earth) above the Earth’s surface. Determine its velocity wh...