ken~flo said:plug in your #'s for (a) to get F
ken~flo said:(c) is just # crunching with a different radius
cash.money said:Homework Statement
An object of mass 40.0 kg rests on the surface of a planet with a mass of 8.2 x 1022 kg and radius 3.6 x 105 m.
a) calculate the force of gravity acting on the object.
b) Determine the gravitational field strength "g" at the planet surface.
c) Calculate the force of gravity acting on the object if it is placed at a position 6.4 x 105 m above the planet's surface.
2. Homework Equations
Newton's law of universal gravitation:
F=G m1m2/r2
Stratosphere said:You will also need
[tex]g=\frac{GM}{r^{2}}[/tex]
Gravity is a fundamental force of nature that causes objects with mass to attract each other. It is responsible for the motion of planets, stars, and other celestial bodies.
The concept of gravity was first described by Sir Isaac Newton in his famous law of universal gravitation in the 17th century. However, ancient civilizations like the Greeks and Egyptians also had an understanding of gravity.
Gravity affects us in many ways. It keeps us grounded on the Earth, allows us to walk and jump, and also plays a role in the formation of tides and ocean currents. It also determines the orbits of planets and other celestial bodies in our solar system.
Yes, gravity is a universal force and is the same everywhere in the universe. However, the strength of gravity can vary depending on the mass and distance between objects.
Currently, we do not have the technology to manipulate or control gravity. However, scientists are continuously researching and studying ways to harness this force for space travel and other applications.