Read the problem carefully and draw a picture Choose origin and x-y coordinate system If given an initial velocity, resolve it into x- and y-components. Demonstrationģ4 Kinematic Equations Horizontal Verticalģ5 Assumptions We consider motion only after it has been projected and is moving freely through the air We don’t consider the acceleration it took to reach that velocity We consider air resistance to be negligible When the object is moving through the air, both horizontally and vertically, it doesn’t slow down due to air resistanceģ6 Make the Math Easier No horizontal acceleration, horizontal velocity remains constant Y-axis positive up, gravity negative down Acceleration in Parabolic Motionģ7 Kinematic Equations for Projectile Motionģ8 Kinematic Equations for Projectile Motion
The kinematic equations are treated in calculus form in Mathematics HL sub-topic 6.6 and Mathematics SL sub-topic 6.6.ġ3 Aims: Aim 2: much of the development of classical physics has been built on the advances in kinematicsġ4 Aims: Aim 6: experiments, including use of data logging, could include (but are not limited to): determination of g, estimating speed using travel timetables, analyzing projectile motion, and investigating motion through a fluidġ5 Aims: Aim 7: technology has allowed for more accurate and precise measurements of motion, including video analysis of real-life projectiles and modeling/simulations of terminal velocityġ8 Kinematic Equations for Horizontal MotionĢ0 Vertical Motion with Vertical VelocityĢ1 Kinematic Equations Horizontal Verticalģ0 Two Dimensional Projectile Motion – Case 1ģ1 Two Dimensional Projectile Motion – Case 2ģ3 One Key Finding The time it takes for an object to fall from a given height is the same whether it is simply dropped or if it begins with a horizontal velocity. Quadratic functions (see Mathematics HL sub-topic 2.6 Mathematics SL sub-topic 2.4 Mathematical studies SL sub-topic 6.3). The accurate use of ballistics requires careful analysis. The equation of the path of a projectile will not be required.ġ2 Utilization: Diving, parachuting and similar activities where fluid resistance affects. Projectile motion will only involve problems using a constant value of g close to the surface of the Earth. Qualitatively describing the effect of fluid resistance on falling objects or projectiles, including reaching terminal speed.ġ0 Guidance: Calculations will be restricted to those neglecting air resistance.
How do scientists work around their intuitions? How do scientists make use of their intuitions?Ĩ Understandings: Projectile motion Fluid resistance and terminal speedĪnalyzing projectile motion, including the resolution of vertical and horizontal components of acceleration, velocity and displacement. International cooperation is needed for tracking shipping, land-based transport, aircraft and objects in space.ħ Theory Of Knowledge: The independence of horizontal and vertical motion in projectile motion seems to be counter-intuitive. The kinematic equations for uniform acceleration were developed through careful observations of the natural world. 1 Devil Physics Baddest Class on Campus IB PhysicsĢ Lesson 2-1C Projectile Motion Fluid Resistanceģ Introduction Videos Projectile Motion 1Ĥ Essential Idea: Motion may be described and analyzed by the use of graphs and equations.ĥ Nature Of Science: Observations: The ideas of motion are fundamental to many areas of physics, providing a link to the consideration of forces and their implication.
0 kommentar(er)
