Situations/examples where you can apply the laws of motion?

Question

Can anyone give me any situations/examples of the laws of motion? Seperate situations for each law please. :)

Answer 1

A body continues in motion or at rest until a force is applied upon it - should be easy just drop something.

Answer 2

for every action there is an equal and opposite reaction. This is everywhere. When you push with your foot on the ground, your skateboard moves forward, The reactive force doesnt seem equal to the action due to the frictional losses. Space is probably the best example. When the astronauts are out of the earths gravitational influence. they only need to make a small push in order to move., And they continue to move in the vacuum until something acts on them to stop their movement. An object in motion tends to STAY in motion unless acted on by an outside force..... Lets see whats the other one?

Answer 3

Let us begin our explanation of how Newton changed our understanding of the Universe by enumerating his Three Laws of Motion.

Newton's First Law of Motion:
I. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

This we recognize as essentially Galileo's concept of inertia, and this is often termed simply the "Law of Inertia".

Newton's Second Law of Motion:
II. The relationship between an object's mass m, its acceleration a, and the applied force F is F = ma. Acceleration and force are vectors (as indicated by their symbols being displayed in slant bold font); in this law the direction of the force vector is the same as the direction of the acceleration vector.

This is the most powerful of Newton's three Laws, because it allows quantitative calculations of dynamics: how do velocities change when forces are applied. Notice the fundamental difference between Newton's 2nd Law and the dynamics of Aristotle: according to Newton, a force causes only a change in velocity (an acceleration); it does not maintain the velocity as Aristotle held.

This is sometimes summarized by saying that under Newton, F = ma, but under Aristotle F = mv, where v is the velocity. Thus, according to Aristotle there is only a velocity if there is a force, but according to Newton an object with a certain velocity maintains that velocity unless a force acts on it to cause an acceleration (that is, a change in the velocity). As we have noted earlier in conjunction with the discussion of Galileo, Aristotle's view seems to be more in accord with common sense, but that is because of a failure to appreciate the role played by frictional forces. Once account is taken of all forces acting in a given situation it is the dynamics of Galileo and Newton, not of Aristotle, that are found to be in accord with the observations.

Newton's Third Law of Motion:
III. For every action there is an equal and opposite reaction.

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 (leaving us facedown in the water, if we aren't careful!).

Answer 4

1. s= ut +1/2at^2
2. v^2 = u^2 +2as
3. v =u + at


above are the 3 equations of uniform motion.
note here the word uniform is of great significance as these 3
equations can be applied to a body iff it moves with constant accleration.

Answer 5

The Canadian Destroyer.

The move which is also referred to as a front flip piledriver begins in a position in which the opponent is bent forward against the wrestler's midsection, the wrestler grabs around his/her opponent's midsection latching onto the opponent's back, with his/her head to one side of the opponent's hips, keeping his/her legs around the opponent's head. From this position the wrestler pushes off the mat with his/her legs to flip the opponent over.

As both wrestlers flip the attacking wrestler uses his/her body weight to land in a seated position driving the opponent's head down to the mat between the wrestler's thighs.

While in kayfabe it is the wrestler who flips the opponent over, in reality, as the wrestler jumps, it is the opponent who raises up to a standing position and performs a backflip to generate the momentum needed to flip him/herself and the attacking wrestler over.

The move was popularized by Petey Williams of Total Nonstop Action Wrestling, who calls it the Canadian Destroyer. It is regarded as one of the promotion's most exciting finishers.

Answer 6

Any ball game. Snooker/billiards/pool and croquet are particularly good examples.