2. At the start of an experiment, a lab cart is moving with a velocity of 0.5 m/s to the right. At the end of the experiment, the cart has increased its speed to 2.0 m/s to the right. Calculate the average velocity (that's
magnitude and direction) of the cart. For credit, show work in detail.

An important dimensionless parameter concerned with very high-speed flow is the mach number, defined as v/c, where v is the speed of the object such as an airplane or projectile, and c is the speed of sound in the fluid surrounding the object. for a projectile traveling at 1170 mph through air at 50 ˚f and standard atmospheric pressure, what is the value of the mach number?