Question

If an object moves with constant (non-zero) acceleration, then which, if any, of the following statements about its motion is/are true?
The position may be increasing or decreasing.
A: True B: False

The acceleration may be increasing or decreasing.
A: True B: False

The velocity may continually change by varying amounts depending on the speed.
A: True B: False

The speed must continually change by the same amount during each equivalent unit of time.
A: True B: False

The magnitude of the velocity, or speed, also could be constant.

Answer 1

I said ABBAB but thats wrong apparently

Answer 2

ABB

Answer 3

FOR THE FIRST 3

Answer 4

yep thats what i have...

Answer 5

last one i m not clear @Astro103 u gave 5 option

Answer 6

its still true false

Answer 7

for the last 2 its AB

Answer 8

so u r correct...!!as per i think

Answer 9

well apparently thats wrong lol...that gives me ABBAB- which is incorrect

Answer 10

okay well only the first one is true....

Answer 11

but if acceleration is constant doesnt speed have to be changing by the same amount ?

Answer 12

since acceleration is a vector and speed is a scalar... you cant compare them at all...

Answer 13

so do i just put false for that one?

Answer 14

sorry let me give you a better explanation... since the body is accelerationg... it means its velocity(orspeed) is increasing or decreasing for every unit for time... lets say if the body;s velocity increases from 1 to 2 in the 1st time interval, it could increase from 2to 4 in the second time interval

Answer 15

if you draw a v-t graph for constant acceleration.... it turns out to be a curve.....maybe u could understand it better that way...

Answer 16

I understand the concept, its just that one question of speed changing at the same amount each time.

Answer 17

did you understand my explanation, if not i could explain again

Answer 18

yeah i understood

Answer 19

ok

Answer 20

So since it isnt ABBAB, I guess it has to be ABBBB...theres no other possibility i guess

Answer 21

yup