I am going to be carrying out some experiments for school in physics class where I will need to calculate the distance a tennis ball travels. I am going to be filming it, and I was wondering if a paused the video at the moment the ball makes contact with ground, would I be able to find the distance of the ball from the camera which will be a in a fixed position?
The camera will be my iPhone 7, as I don't have any other cameras. Also, does the height of the camera above the ground matter? Say I have it at a height of 2m above the ground, will it affect the calculations of finding the distance of the tennis ball from the picture?