# INTRODUCTION TO PHYSICS

Jun 17th, 2015
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Physics (from Ancient Greek: φυσική (ἐπιστήμη) phusikḗ (epistḗmē) “knowledge of nature”, from φύσις phúsis "nature"[1][2][3]) is the natural science that involves the study of matter[4] and its motionthrough space and time, along with related concepts such as energyand force.[5] More broadly,

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Colombian Olympiad PhysicsTraining ProblemsProblem 1-1A hinge construction comprises three diamonds whose side lengths are in the proportions 3:2:1.VertexA3is shifted in the horizontal direction with velocityVconstant.Determine the velocities of the verticesA1,A2,B2at all angles of the building are straight.Problem 1-2In a movie screen shows the movement of a car.The radius of the front wheels of the car isr= 0.35 m and the rearRofr= 1.5.The front wheels haveN1= 6 radios.The camera filming the film moves at a speed of 24 frames per second.a) Considering that the wheels of the car move without slipping, determine the minimum speed at which the car must be moved to the front wheels appear to rotate in the screen.b) What is the minimum number of radiosN2which must be to the rear wheels while the front also appear to not rotate?For the next question considering that the number of spokes of the front and rear wheels isN1=N2= 6.c) How fast is the car moving from left to right, to a spectator will appear that the spokes of the wheels rotate in a counter clockwise?Problem 1-3Two tanks are moving on a horizontal ground so that approximate along the same line with constant speed as shown.Each tank fires a shot at the same time in the same vertical plane of the other tank.The speed of each projectile with respect to the tank isu1andu2and the respective angles with the horizontal??1???2.Both shot tanks impinging upon.a) Find th

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