If a small here is projected horizontally near the surface of a planet and photographs of the sphere are taken at time intervals of 0.20 and the images of the sphere are placed on a grid, how would constant horizontal velocity it show that air resistance is negligible
If the sphere is projected horizontally near the surface of a planet and air resistance is negligible, it means that the sphere will have a constant horizontal velocity throughout its motion.
To visually observe this constant horizontal velocity in the photographs, the sphere's position on the grid would remain the same horizontally in each consecutive image. There should be no significant change in the sphere's horizontal position in the grid across the time intervals.
If air resistance were significant, it would act against the motion of the sphere, causing it to slow down horizontally over time. This would be visible in the photographs as a noticeable change in the sphere's horizontal position between consecutive images on the grid.