Comparação das características da velocidade de uma esfera de aço em movimento sobre um plano inclinado e em lançamento oblíquo

Abstract

This research aimed to compare the rolling speeds of a steel ball when descending an inclined plane with the speeds obtained from an oblique launch on the same plane. The research explores the relationship between kinematic theory and practical experiments, analyzing how different inclination angles affect observed speeds. Using a detailed experimental methodology, several angles were selected to investigate the influence of angle on ball rolling speed and time. Precise measurements were carried out, considering factors such as friction, mass and sphere radius, to ensure reliable results. Calculating the final speeds using three different methods: photoelectric sensors, horizontal range and energy conservation, the following results were obtained: the speed measured by the sensors was , the speed calculated by the horizontal range was and the speed derived from the conservation of energy was . These velocities showed significant dispersions around the fit lines, indicating variations in the experimental data. The data obtained was statistically analyzed to identify significant correlations between the variables. The results highlight the importance of angle in determining rolling speeds and provide valuable insights into understanding the relationships between theory and practice.