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Object motion trajectory curve is a curve

movement, known as Suffered , Tiffany 1837 Three Diamond Ring, a combined force when the object and its velocity direction is not the same line, the object is to make curved.

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direction of the relationship between force and velocity curves of the classification of movement direction of the velocity curve for example curved track in a given particle movement and velocity curves of force during movement in the direction of the relationship between curve of the movement: when the force vector and the angle between the velocity vector is equal to 90 °, the force only changes the direction of object velocity, the speed does not change the size: for example, uniform circular motion; when the angle , Return to tiffany heart tag charm, of less than 90 °, the force not only changed the direction of the object velocity, and increase the speed of money; when the angle is greater than 90 °, similar changes in the direction of the object velocity, but reduce the speed value. The movement of objects in the curve of the movement to a certain point, a combined force suffered the object can be decomposed into vertical velocity along the direction of the direction and speed of the two components of velocity along the direction in which the rate of change of the size of the component, the vertical velocity component of the direction of change in velocity . The direction of movement velocity curve time is changing, because it is a vector, both the size, but also direction. Regardless of whether the size of , Elsa peretti bottle round bottle pendant, the speed of change in the direction as long as the speed of change, to change the velocity vector, it has the acceleration, so the curve movement is variable motion. Acceleration rate can be decomposed into the direction and vertical velocity along the direction of two components, which describe the components along the velocity direction of the speed of change in velocity, vertical velocity component describes the direction of the speed of the speed direction changes. Curve acceleration force direction is always the same direction and cooperation. Acceleration of the object itself is caused by external force when force is equal to 90 degrees, the force in the direction of the decomposition , Elsa Peretti Round earrings, rate of force is 0, so it will not change the velocity to change direction only when less than 90 degrees, in the positive direction of the decomposition rate force, so you can change the velocity and will accelerate, but also in the decomposition rate of vertical force, it will also change the speed direction, when the speed is greater than 90 degrees in the opposite direction when the force of a break, so you , Elsa Peretti tag pendant, can change the velocity, and will deceleration, and also in the decomposition rate of vertical force, so the course will change the direction of uniform circular motion the speed is not really uniform motion, the curve movement is variable motion, and stated , Paloma's x charm, in uniform circular motion refers to the rate of uniform size. (curve movement is variable motion, where a constant external force, it is a uniform variable motion; where a change in force, it is a variable acceleration.) suffered when the body force direction and the direction of its movement is not in the same line when object in curvilinear motion. Also note that , uniform circular motion three. The level of Projectile Motion Projectile Motion, and all belong to projectile motion. Projectile Motion in which there is a certain level the initial velocity, and only by the gravity of the curve movement trajectory is a parabola. HORIZONTAL velocity can be decomposed , Elsa peretti wedding band ring, into horizontal and vertical direction of the force, which make uniform motion in horizontal direction, vertical direction of doing the initial velocity of 0 g acceleration of the uniformly accelerated motion (ie free fall); inclined parabolic the speed of movement can be decomposed into horizontal and vertical speed, horizontal direction in which to do uniform motion, speed, size cosa * v (a is the angle between , Tiffany Elsa Peretti charm bracelet, the horizontal velocity), the vertical initial velocity sina do first * v g, the acceleration is uniform deceleration, to the highest point on the vertical direction of the force is reduced to 0, and then do initial velocity is 0 acceleration g constant acceleration motion. And if the starting point and landing point on the same level, when a maximum displacement of 45 degrees the direction of the velocity curve of the curve tangent point velocity of movement of the horizontal velocity and vertical velocity from the synthetic example, shoot the curved chamber , cosine of the arrows, throwing shot put, shot. Movement trajectory curve: curve always combined the angle between force and speed, the convex curve of the relative joint force and relative velocity in a given direction of concave track particle movement in the orbit of the known particle case, the particle location may wish to use a selected curve from the , Tiffany Heart Tag Key Ring, orbital origin of the curve length s o counting characterized. In this case, the velocity vector is always along the curve tangent direction, we might also use the speed v = ds / dt to represent. The acceleration vector a, it changes both the rate of reaction velocity part (along the tangential component), another reflection of some of the speed change rate of direction (perpendicular to the velocity, that is sent to the component along) curve motion condition 1, the object with the acceleration of 2 objects together suffered the , Tiffany Paloma Picasso Dove earrings, direction of force direction and speed .
Par wuding5 le mardi 17 mai 2011

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