Question

sketch a plot velocity vs. time (please help:))

Answer 1

i have to sketch a plot velocity vs. time based on this

Answer 2

@skullpatrol @arabpride

Answer 3

Hi, so your starting point is a graph of distance vs time for something in motion.
Do you recall how velocity is defined ?

Answer 4

idek x.x'' I'm sorry.. I don't think I've even taken this

Answer 5

Yes, i do velocity is displacement/change in time

Answer 6

@ProfBrainstorm

Answer 7

ok, so you need to look at the graph and consider the two phases of the motion. take the sloping section first, can you figure out what the speed is there ?

Answer 8

speed = dist/time so the distance is from .5 to 1.5 so 1 m and the time is from 0-3 sec so the speed is 1m/3sec

Answer 9

a little confused so not sure if thats correct

Answer 10

yes that looks right, then there's the flat section to figure out

Answer 11

flat section is distance stays at 1.5 so the change is 0 and the time cahnges from 3-4 seconds so 0/1

Answer 12

right again - the units will be meters per second, by the way
now you just need to put the results in graph form, v against t

Answer 13

this is the challenging part for me im not 100% sure how to graph this, i put v as my y axis and t as my x and do i start from 0 (0/1) and then go up to 1/3 for my v

Answer 14

well you use the same time periods that you considered in the distance graph, put the value of v that you calculated for each particular time period
so, what was the value of v you got for the first three seconds ?

Answer 15

so something like this, from 0-3 is 1/3 and from 4-5 is 0