In 2009, Usain Bolt of Jamaica set a world record of 9.58 s in the 100 m dash. What was his average speed? Give your answer in kilometers per hour.

Below

Explanation:

To find the average speed of a person you can use this formula :

     Velocity = distance / time

Plugging in our values ...

     Velocity = 100 m / 9.58 s

                    = 10. 4384... m/s

To convert m/s to km/h, multiply the speed by 3.6

     10.4384133612 x 3.6 = 37.578288100317 km/h

                                        = 37.6 km/h

*if your teacher says to round to 1 sig fig because of the 100m then round it to 40 km/h*

Hope this helps! Best of luck <3

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.