Otro
An experimental verification of newton's second law
Registro en:
Revista Brasileira de Ensino de Fisica, v. 35, n. 2, 2013.
0102-4744
10.1590/S1806-11172013000200024
S1806-11172013000200024
WOS:000321562100024
2-s2.0-84880665505.pdf
2-s2.0-84880665505
Autor
Hessel, Roberto
Canola, Saulo Ricardo
Vollet, Dimas Roberto
Resumen
We describe an experimental procedure to probe the validity of Newton's second law. The experimental arrangement allows us to accelerate a glider on an air track by means of forces that are both steady and known. We also show how to determine acceleration from average speeds calculated for successive time intervals of the motion measured by using several electronic counters connected to a single-crystal oscillator circuit. Within experimental errors, the experiments clearly show the proportionality between acceleration and force for a fixed mass and between acceleration and inverse of mass for a fixed force. © by the Sociedade Brasileira de Física.