Final answer:
The final speed of the cart can be determined by dividing the distance traveled by the time it took to travel that distance: speed = distance / time. The speedometer of a car shows its instantaneous speed, which is the vehicle's speed at a particular moment.
Step-by-step explanation:
The final speed of the cart cannot be determined directly from the information given in the prompt. To measure the final speed of a moving cart, you would need specific details such as the distance it traveled and the time it took to travel that distance. According to the mentioned procedure, you would use tape to mark off a distance on the track and then use a stopwatch to measure the time it takes for the cart to cross the marked distance. Once you have both measures, the final speed of the cart is calculated by dividing the distance by the time (speed = distance / time).
A car's speedometer shows its instantaneous speed, which is the speed of the vehicle at a specific moment in time. For example, a speed of 30 cm per second means the cart moves 30 centimeters every second. To comprehend various speeds more intuitively, we often convert them into units we are more familiar with, such as converting meters per second into kilometers per hour or miles per hour.