what is the 3 laws of motion?
&
what is the law of universal gravitation
plz answer
thx in advance
Check these sites.
http://csep10.phys.utk.edu/astr161/lect/history/newton3laws.html
http://csep10.phys.utk.edu/astr161/lect/history/newtongrav.html
thank you this helped me alot
The three laws of motion and the law of universal gravitation are fundamental principles in physics that were formulated by Sir Isaac Newton. Here's an explanation of each:
1. Newton's First Law of Motion (Law of Inertia):
This law states that an object at rest tends to stay at rest, and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an external force. In simple terms, objects have a natural tendency to resist changes in their motion.
To answer a question about the first law, you should remember that objects tend to maintain their state of motion unless acted upon by an external force. Think about scenarios where objects keep moving or stay stationary unless something interferes with their motion.
2. Newton's Second Law of Motion:
This law states that the force acting on an object is directly proportional to the mass of the object and the acceleration produced. Mathematically, it can be expressed as F = ma, where F is the force applied, m is the mass of the object, and a is its acceleration.
To answer a question about the second law, you should know that when a force is applied to an object, it will experience an acceleration directly proportional to the force and inversely proportional to its mass. Think about scenarios that involve forces and changes in acceleration.
3. Newton's Third Law of Motion:
This law states that for every action, there is an equal and opposite reaction. In other words, any force exerted by one object on another is matched by an equal and opposite force exerted by the second object on the first.
To answer a question about the third law, remember that every action has an equal and opposite reaction. Think about scenarios involving pairs of forces exerted by interacting objects.
Now, moving on to the law of universal gravitation:
Newton's Law of Universal Gravitation describes the force of gravity between two objects. It states that every particle in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
Mathematically, it can be expressed as F = G * (m1 * m2) / r^2, where F is the force of gravitational attraction, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers.
To answer a question about the law of universal gravitation, you should know that all objects with mass attract each other with a gravitational force. Think about scenarios related to the attraction of objects based on their masses and separation distances.
Remember, when answering questions, it's important to apply these laws and principles appropriately to the given situation or context.