Five race cars speed toward the finish line at the jasper county speedway. the table lists each car’s speed in meters/second. if each car has the same mass, which car will require the longest time to come to a full stop?
car a car b car c car d car e
890 m/s 850 m/s 790 m/s 895 m/s 870 m/s

car a

car b

car c

car d

car e

Car C

Explanation:

It is given that,

Five race cars speed toward the finish line at the Jasper County Speedway. The mass of each car has same mass. The speed of all cars are given as :

Car A = 890 m/s

car B = 850 m/s

Car C = 790 m/s

Car D = 895 m/s

Car E = 870 m/s

The distance is constant because the finish line is same for all cars. The speed of an object is given by the total distance covered divided by total time taken i.e.

Where

d = distance

t = time required by the car to come to a full stop

So, time taken is inversely proportional to the speed of the car. The car having less speed will take maximum time to come to stop. Hence, car C will require longest time to come to a full stop.    

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.