We show that some results in the kinematics of a point particle can be easily recalled by introducing simple definitions. In particular, in the parabolic motion of a particle thrown from a height h above the origin O at an angle θ from the horizontal direction, the optimum angle θ* for reaching the maximum distance Rmax on the ground, measured from the origin, can be found by calculating the inverse tangent of the ratio between the initial velocity V_0 and the final velocity V_f. The value of R_max is itself found to be easily expressed as V_0 V_f/g, g being the acceleration due to gravity.
Titolo: | Shotput kinematics made simple |
Autori: | |
Data di pubblicazione: | 2013 |
Rivista: | |
Abstract: | We show that some results in the kinematics of a point particle can be easily recalled by introducing simple definitions. In particular, in the parabolic motion of a particle thrown from a height h above the origin O at an angle θ from the horizontal direction, the optimum angle θ* for reaching the maximum distance Rmax on the ground, measured from the origin, can be found by calculating the inverse tangent of the ratio between the initial velocity V_0 and the final velocity V_f. The value of R_max is itself found to be easily expressed as V_0 V_f/g, g being the acceleration due to gravity. |
Handle: | http://hdl.handle.net/11386/4251053 |
Appare nelle tipologie: | 1.1 Articoli su Rivista |
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