Earth Sciences homework help. An object is thrown straight into the air and eventually returns to its starting point. Assume upward is the positive y direction. give the signs (+ or -) for the acceleration, velocity, and displacement relative to the start point in the following cases 1. on the way up 2. at the highest point 3. on the way downAn object is thrown straight into the air and eventually returns to its starting point. Assume upward is the positive ydirection. give the signs (+ or -) for the acceleration, velocity, and…

Earth Sciences homework help