As was discovered in the early part of the 20th century, all of the other galaxies we see are moving relative to our own, and most of them are moving away from us. The ball’s velocity with respect to ...As was discovered in the early part of the 20th century, all of the other galaxies we see are moving relative to our own, and most of them are moving away from us. The ball’s velocity with respect to the cart will always be positive because the person will always throw the ball toward the right side of the screen. Click the “Generate” button, and you will be given the speed of the cart and the speed of the ball in meters per second.
