A student is standing on a very steep hill, kicks a soccer ball horizontally with a speed of 5 m/s toward a student who is sitting on a level field 2.3 meters below. If the second student catches the soccer ball at ground level, how far from the hill was she?

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?