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 it show that air resistance is negligible
If air resistance is negligible, the sphere would follow a projectile motion, also known as a parabolic trajectory, without any significant deviation or deceleration caused by air resistance. Here's how you can observe this on the grid:
1. Place the images of the sphere on the grid, starting with the initial position.
2. Draw a straight line connecting the positions of the sphere in each consecutive image. This line should be a smooth curve, resembling a parabolic shape.
3. Measure the distance covered by the sphere horizontally in equal time intervals (0.20 s) by using the grid.
4. If air resistance is negligible, the distance covered by the sphere horizontally should be roughly the same for each time interval. This indicates that the sphere is moving with a constant horizontal velocity.
By observing a consistent horizontal velocity and a parabolic trajectory on the grid in successive images, it can be concluded that air resistance is negligible in this scenario.