The Acceleration of a Freely Falling Body

Acceleration of Free Fall To study the movement of free fall, the object is dropped and recorded on a wax coated paper by electric spark at a position after successive equal time intervals. Based on these data, plots of distance versus time and speed versus time are plotted. By determining the slope of the velocity versus time curve you can find the acceleration caused by gravity. Theory In one dimension, the average speed of an object in an interval is the quotient of the distance the object moves and the time it takes to travel that distance. (1) neutral.

Einstein first pointed out that free falling in the gravitational field will result in constant acceleration (speed change, but constant speed). Then he realized that the observer could not distinguish free falling into the gravitational field and other equal acceleration mechanism like rocket. Einstein later thought that acceleration describes how an object moves in space and time, and because it is indistinguishable from free falling gravity and any uniform acceleration. Please explain the direct impact on the object. Space itself. The result proves that this is deep insight

Then he raised hope for the patent office's happy thought. People can accelerate freely to the ground due to gravity, but I feel incompetent (until there is a shock). Therefore, Einstein recognized that gravity and acceleration are both sides of a coin. Accelerate the upward thrust of the rocket ship so that the gravity of the earth supports your feet against the ground, the crew will be nailed to the floor. Equality of this acceleration and gravity explains a strange Newton 's agreement. The mass of the object (inertial resistance to movement change) is equal to its weight (or mass to mass) response (response to gravity). Einstein established a special theory of relativity theory under the constant speed principle of light; he suspected that general relativity can be based on equal principle of inertial mass and gravity. If he succeeds it means that the laws of nature are the same for all forms of movement.

One of the main achievements of Galileo physics is the explanation of free fall. According to the law of free fall of Galileo, all objects on the earth's surface accelerate uniformly, and the acceleration of all objects is constant. Galileo did not ask where the acceleration of falling objects came from. The falling body clearly violates the law of conservation of momentum. According to Descartes, the movement of the falling body must be accelerated by something and the body must acquire momentum from somewhere. But for Descartes, the only interaction mechanism is due to contact interaction (ie push or pull). The agent that gives the additional momentum to the falling body must be moving (must have some movement to be able to convey the movement) and it must always be in contact with the falling body