2. A vehicle moves in one dimension with the velocity vs. time graph shown. (2) Over what time intervals is the velocity increasing?
(b) Over what time intervals is the velocity decreasing?
*) Determine the displacement during the interval from t = 2 to t = 5 s.
(d) On the axes below, sketch the acceleration vs. time graph of the vehicle over the
entire time.

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?