Broken or bruised ribs. Introduction. Broken (fractured) or bruised ribs are usually caused by a fall or blow to the chest, or occasionally by severe coughing. They can be very painful, but will normally improve within about three to six weeks. If you think you've injured your ribs, you'll often be able to look after yourself at home.
The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time. For the special case of straight line motion in the x direction, the average velocity takes the form:
It is distance traveled over time. Speed may vary on a trip, so those numbers are averaged to come up with average speed. To find an average, take all numbers, add them, the â¦ n divide by the number of inputs. Example- 2, 3, 7, 4-add together-16 Divide by inputs or no of numbers-4 Answer-4 which is the AVERAGE.peed is just a magnitude. So, speed is just change in po â¦ sition (distance traveled) divided by time. s=d/t. Velocity is the same equation, but you need to give it a direction, e.g. to the right, or up. if you are using deltas (â) the s=âd/ât.