Newton's 2nd law state that the rate of momentum is proportional to the impressed force & the change in momentum takes place in the direction of force.
Mathematically ,
F = dP/dt = m dv/dt + vdm/dt = m dv/dt = ma [for constant mass system
dm/dt = 0]
Application:
In rocket propulsion, rocket propulsion represents a system of variable mass. This situation is analysed by generalising 2nd law to give result.
Thrust generated by leaving mass = urel dM/dt , where urel = velocity (relative) of detached mass w.r.t. parent mass and dM/dt = rate of change of mass
Hence a = urel dM/dt /Mo - dM/dt . t
The laws of falling bodies and the motions of projectiles are the universal laws of gravitation. Two universal bodies attract each other with a force that is directly proportional to the products of their masses and inversely proportional to the square of the distance between them. For things like projectile motion that take place in a planets atmosphere, gravity is treated as the product of the objects mass and the acceleration of gravity on the planet.
Newton's laws of motion are three physical laws that form the basis for classical mechanics. The third law is Whenever a first body exerts a force F on a second body, the second body exerts a force -F on the first body. F and -F are equal in magnitude and opposite in direction. This law is exemplified by what happens if we step off a boat onto the bank of a lake: as we move in the direction of the shore, the boat tends to move in the opposite direction.
Applications of Newton's third law:- In car, the principle used in the seat belts is the same. Also in the shock absorbers of vehicles.
Ballistics
robert
The term kinetics is a word that is used to describe the motion of particles or objects in motion.These include projectiles, how particles move, and Newton's Laws of Motion.
Einstein's special theory of relativity considers the rate of passage of time as variable since it explains motions of bodies at velocities closer to that of light; whereas Newton's laws of motion basically deal with practically attainable velocities therefore the rate of passage of time is treated to be constant.
Newtonian mechanics was founded on the basis of newton's law of motion and laws of gravitation deals with the motion of particles, rigid and deformable bodies, system of particles, equilibrium pf particles and bodies, propulsion of rockets, propagation of sound waves etc.
That branch of physical science which treats of the nature and properties of light, the laws of its modification by opaque and transparent bodies, and the phenomena of vision.
In general, attractive forces between two bodies are described by laws of nature (such as the law of gravity, Coulomb's Law, etc.) but if you were to describe a previously unknown type of attractive force, that might be a hypothesis which could become a new theory.
In physics, Galileo is remembered for discovering the laws of falling bodies and motions of projectiles.
If you mean Newton's laws of motions, then they are: 1. A body in motion will continue unless a force is applied 2. Force equals mass times acceleration 3. For every action there is an equal and opposite force =)
Galileo
Isaac newton.
ang tae baho kaayo..............
laws of accelerated motion and falling bodies
Galileo Galileo
The three laws of motion are: The Law of Inertia The Law of Acceleration and The Law of Interaction.
statutory laws
Statutory Laws
The laws of motion are described by Newton's Three Laws. These laws don't coincide fully with previous beliefs about motion.
-- There are two other laws in the set ... one before it and one after.