A BMX biker leaves the end of a horizontal ledge with a velocity of 27 m/s and lands 7.2 from the base of the ledge. How high is the ledge?

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

John throws .4 kg ball with velocity of 18 m/s. hits .2 kg bottle and bottle flies 25 m/s. how fast is ball traveling after hitting the bottle?

Which statement correctly describes the relationship between frequency and wavelength?