1. What is the velocity of a car that traveled a total of 87 km East in 2.5 hours? 2. What is the velocity of a plane that traveled 4700 miles from New York to California in 6.7 hr?

3. John took 38 minutes to bicycle to his grandmother's house, a total of 3.2 kilometers. What was his velocity in km/h?

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?