If displacement vs time graph has a straight line then
A
velocity is changing
B
acceleration is zero
C
velocity is zero
D
time is zero

Question

If displacement vs time graph has a straight line then
A
velocity is changing
B
acceleration is zero
C
velocity is zero
D
time is zero

anonymous · Answer

@agent0smith

anonymous · Answer

@dan815 @aaronq

anonymous · Answer

@rock_mit182 @BassCatcher15

anonymous · Answer

@sammixboo @kirbykirby

rock_mit182 · Answer

|dw:1411082232045:dw|

anonymous · Answer

if Roach runs the length of the football field and back in 10 s . What is his displacement?
A
0 yards
B
240 yards
C
0 yards/s
D
240 yards/s

agent0smith · Answer

Straight line isn't descriptive enough.

Horizontal line means velocity is zero.

Any straight line means acceleration is zero.

rock_mit182 · Answer

Since the velocity is constant, there is not changing in acceleration

anonymous · Answer

thanks. can you guys answer the 2nd question pls

rock_mit182 · Answer

PLease Post  again.  I will answer it

sammixboo · Answer

Sorry for not responding, hun!

agent0smith · Answer

if Roach runs the length of the football field and back, what is his displacement

if you understand what displacement is (change in position) this is very easy.

anonymous · Answer

whats the answer?

agent0smith · Answer

That's for you to work out. Displacement is change in position. What is his change in position?

anonymous · Answer

A?

agent0smith · Answer

You should be 100% sure. if Roach runs the length of the football field and back, what is his displacement... 

what is his change in position? From that you have his displacement.

anonymous · Answer

irdk.

agent0smith · Answer

Where did he start from? Where did he finish? Use those to find his change in position.