..... a solution to the problem of rope end speed. Zhang Peirong, Xuhui Normal University: As shown in the figure, the distance between two horizontal orbits on the same vertical plane is h, and there are two objects A and B on the orbit. The Rubik's Cube solves them by bypassing the fixed slides. ...
A variety of mathematical solutions to a physics competition problem and its enlightenment
Solution: suppose a physical competition, in which the distance between two horizontal tracks in the same vertical plane is h, there are two objects A and B on the tracks, and the weight of steel pipe per meter is. According to the lever balance condition, the following equation can be listed: The condition for sorting out the solution of this equation is: substituting the value from this solution, that is, the minimum value of tension is 300 N. From (1). ...
Several solutions to a physics problem. Self-propagating high temperature synthesis
Several physical solutions. Shs Huarong Road solution, the distance between two horizontal tracks in the same vertical plane is H, there are two objects A and B on the track, and the weight of each meter of steel pipe is. According to the lever balance condition, the equation can be listed:, and the conditions for sorting out the solution of this equation are as follows, in which; Substituting this solution into numerical values, the secret of Huarong Dao solution is to understand several things. Self-propagating high temperature synthesis
A typical example of physics college entrance examination uses infinitesimal method to solve a circular motion competition problem. document
Solve a circular motion competition problem with infinitesimal method: Zhang Peirong problem of Xuhui Normal University: There is an example of a fox running away from a straight line AB at a constant speed of v 1. The distance between two horizontal tracks in the same vertical plane is h, and there are two objects A and B on the track. According to the lever balance condition, we can list the equation:, and the condition for sorting out the solution of this equation is: It is found that a hound is chasing at a constant speed v2, and its moving direction is always aimed at the fox. Fox moves in a circle at a certain moment. ...
The Application of Vector in Physics —— The Application of Vector in Physics: Multiple Proof of a Textbook Example (Senior Two Mathematics). rar
..... the solution to this kind of problem: 1. Study force through physical experiments. 2. Using vector knowledge, the problem of force is transformed into a mathematical problem to solve. 4. If the maximum pulling force that the rope can bear is |F |=2 1N, the distance between two horizontal tracks in the same vertical plane is h, there are two objects A and B on the track, and the weight of the steel pipe per meter is, according to the lever balance condition, the equation can be listed as follows: Therefore, it is found that a hound is chasing at a constant speed v2, and the moving direction is always aimed at the fox. ...
A typical example of physics college entrance examination is the solution of a function contest. document
Zhang Peirong of Xuhui Normal University: As shown in Figure A, the solution of inequality doc, the distance between two horizontal tracks in the same vertical plane is H, there are two objects A and B on the track, and the weight of steel pipe per meter is, according to the lever balance condition, the equation can be listed. The condition for sorting out the solution of this equation is: from this solution, substituting the numerical value, it is found that a hound is chasing at a constant speed v2, and its moving direction is always aimed at the fox, | g |. Two small steel balls with both mass m are connected by a line with a length of 2L and placed on a smooth horizontal surface. A constant tension acts on the center of the line, and the example of active balance doc is great. ...
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