Determine the greatest velocity (in m/s) obtained by this object (consider magnitude only in determining 'greatness'). (If negative, then enter a negative answer.)

m/s

http://www.webassign.net/userimages/q8a9a13.gif?db=v4net&id=52790

Question

Determine the greatest velocity (in m/s) obtained by this object (consider magnitude only in determining 'greatness'). (If negative, then enter a negative answer.)
  

 m/s

http://www.webassign.net/userimages/q8a9a13.gif?db=v4net&id=52790

shane_b · Answer

Ok...the graph is a position vs time graph.  The slope at any point is the velocity.  First tell me which part of the graph has the steepest slope?

anonymous · Answer

14 seconds

shane_b · Answer

Right.  So that will be the point of the highest velocity.  To calculate the velocity you just need to figure out the slope during the period from 14s to 16s.  Can you do that?

anonymous · Answer

naw

shane_b · Answer

Ok no problem.  The car goes from 8.00m to 0.00m in 2 seconds.  What's the velocity then?

shane_b · Answer

Hint:$$Velocity=\frac{displacement}{time}$$

anonymous · Answer

but fareal can i just get that answer

shane_b · Answer

We're not allowed to just give out answers.$$Velocity=\frac{s_f-s_i}{\Delta t}=\frac{0m-8m}{2s}=?$$

anonymous · Answer

4

shane_b · Answer

-4 m/s

anonymous · Answer

oh yeha

anonymous · Answer

so you work for the site?

shane_b · Answer

No...but if we give out answers we will get warnings which could lead to bans. http://openstudy.com/code-of-conduct

anonymous · Answer

oh

anonymous · Answer

For each numbered description below, pick the lettered point(s) on the graph that correspond to the word description. Some questions have more than one correct answer!

anonymous · Answer

http://www.webassign.net/userimages/jlabelle @dartmouth/HW1Agraphscan.gif

anonymous · Answer

i need to know these i already got the rest

(f) acceleration is positive
 
(g) acceleration is negative