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Download full textPispinis, Dimitrios – European Journal of Physics Education, 2019
We look at the problem of the minimum speed of projectiles in a constant gravitational field. In the absence of resistance, the problem may be studied in the frame of a high school curriculum. One needs only Newton's laws and a minimum amount of analytic geometry to compute the orbit, which turns out to be parabolic. Furthermore, in case the…
Descriptors: Science Instruction, Secondary School Science, High Schools, Physics
Peer reviewedDeka, A. K. – Physics Education, 1991
The simple physics behind the mechanism of the toy are explained. Experimental and mathematical steps are given that help in understanding the motion of the doll-pair. The geometry of the setup is described. (KR)
Descriptors: College Science, Computation, Geometry, Higher Education
