The speed (commonly referred to as v) of an object in everyday use and kinematics is the magnitude of the change in its position over time or the magnitude of the change in its position per unit of time; it is thus a scalar quantity.
The distance traveled by an object in a time interval is divided by the duration of the interval; the instantaneous speed is the limit of the average speed as the duration of the time interval approaches zero.
Velocity is not the same as speed.
To find what was Beth's speed:
Beth's data:
time = 2 hrs; rate = r mph; distance = r×t = 2r miles
country CDs. The table gives the probability of randomly picking a CD of each type from. ... Music Style Probability of Picking a CD pop 0.2 rock 0.1 metal 0.3 country 0.4 Rachel picks a CD 150 times, replacing each pick before the next draw.
