Is inertia a force
inertial force means that when the object has acceleration, the inertia of the object will make the object tend to maintain its original motion state. At this time, if the object is taken as the reference frame and the coordinate system is established on the reference frame, It seems as if there is a force in the opposite direction acting on the object, which makes the object have the tendency of displacement in the coordinate system, so it is called inertial force (also known as imaginary force).
force is another name for the interaction between two objects< So inertia is not a force.
external force does not necessarily proce inertia
the key is speed
it is the change of speed that proces inertia
inertia depends on mass
this is the answer of Newton mechanics system
speed also changes time
changes distance
hehe
special relativity
in 2009, the first IAC competition was successfully held in Meili Liuzhou, including three top water sports: F1 motorboat world championship, water motor world championship and world cup water skiing. The event lasted for seven days and received more than 100 top water athletes from more than 30 countries and regions in the world. It is the first time that the three world's top water sports are held in the same place and at the same time. It is a seamless link initiative of water sports
in 2010, the second IAC competition is just around the corner. In order to increase the brilliance and attention of the competition, the organizing committee has made adjustments in the competition items, time and place. One of the biggest differences is that the organizing committee organizes a grand and wonderful China water motor marathon open before the IAC starts. The race adopts the riding open class motor boat, with about 120 motor boat athletes participating in it, completing a long-distance enrance race of nearly 100 kilometers. As a warm-up race before the IAC starts, it is a very ornamental and eye-catching race
in addition, considering that the competition scenes of water skiing events in the 2009 World Cup are too thin and not highly ornamental, the organizing committee has also made corresponding adjustments, changing the tail wave and jumping events in water skiing into performance events, such as barefoot skiing, water folding, water ballet, multi person flower wearing, stunt jumping, double person skill, multi person skill, 360 around the boat, flying chair Parachute air skills, water shoes, water skiing and other performances let you see a wonderful enough
from October 13 to 18, 2010, the waters of Sanmenjiang Bridge and Jinglan bridge on Liujiang River in Liuzhou, let you see different IAC!
the motion of an object is a property of an object, which should not be maintained by force
if the object is not subject to gravity, it can move upward in a straight line at a constant speed
the reason why it moves up and down after a period of time is that the force changes its motion state.
Difference:
1. The generation mechanism of inertia and inertial force is different. Inertia is not the force acting on the object, and inertial force is not the real force in Newton mechanics. Inertia is generated because the object has mass, which is the attribute of any object. Inertial force is the force acting on the object in non inertial frame e to the acceleration of non inertial frame relative to inertial frame
The physical meaning was different; Inertia refers to the property that an object has to keep still or move in a straight line at a constant speed; Force refers to the action of an object on an object. Inertia is the property of the object itself, which has nothing to do with the external conditions; The force is only when the object interacts with the object, and there is no force without the object The inertia has only size, no direction and action point, and the size has no specific value, no unit; Force is composed of three elements: size, direction and action point. Its size has specific value, and its unit is cattle Inertia is the property of keeping the motion state of the object unchanged; The action of force is to change the motion state of the object The magnitude of inertia is only related to the mass of the object, while the magnitude of force is related to many factors (depending on the type of vision) The magnitude of inertial force is not only related to the inertia of the object, but also related to the motion of the non inertial system to the inertial system and the motion of the particle in the non inertial system. For example, in the translational non inertial system with linear acceleration, the inertial force on the object is opposite to the acceleration direction of the non inertial system, It is equal to the proct of the mass of the object and the acceleration of the non inertial system, and has nothing to do with the position of the object and the velocity of the object relative to the non inertial system; For another example, if an object is stationary in a non inertial frame rotating at a constant speed, the resultant force of the real force acting on the object and the inertial centrifugal force is zero. The magnitude of the inertial centrifugal force is related not only to the angular velocity of the rotating system and the mass of the particle, but also to the position of the objectCompared with ordinary instrial park, the advantage of Virtual Instrial Park is that it has to solve several important problems. The foundation of its existence is to solve the trend of urban hollowing out:
1. Office, conference, Internet and other high rent and high investment hardware problems. E-commerce enterprises need office and warehouse facilities, The policy of virtual registration can better commercialize the non office space
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focusing on these needs of e-commerce, according to the general trend of e-commerce development promoted by the government, combined with the experience of China Association of small and medium enterprises in the construction of e-commerce integrity system, the e-commerce Virtual Instrial Park is launched
