A ball moves uniformly. The position of the ball each
second is shown. What is the speed of the ball?
Here, we’re asked to find the speed
of the ball in the diagram. First, let’s take a look at the
diagram to see what we are given. We can see that the distance
between the ball at each interval is two meters and each interval is one second
apart. Recall that speed is the distance
an object travels divided by the time that the object travels for. So speed is equal to the distance
traveled divided by the traveling time. Here, the ball is moving a distance
of two meters in each one-second time interval. So our speed is equal to two meters
divided by one second. Therefore, the correct answer is
two meters per second.