- #1
juyoung518
- 8
- 1
Hi, this problem is making my head ache.
Lets say that an object is moving at a decelerating speed(-1m/s) starting on 4m/s towards east and stopped after 4 seconds.
(There are no friction.)
After 4 seconds, the object would have 0 speed, no direction and 0 velocity etc.
Question 1 : Is the object a null vector(0 vector) after it completely stops?
Question 2 : Since the object was moving toward east and then stopped at 4 seconds, can it be said that the object changed directions when it stopped?
I mean, the direction changes : East -> None The vector changes to a null vector too.
Sorry for the bad english... it isn't my native language
Lets say that an object is moving at a decelerating speed(-1m/s) starting on 4m/s towards east and stopped after 4 seconds.
(There are no friction.)
After 4 seconds, the object would have 0 speed, no direction and 0 velocity etc.
Question 1 : Is the object a null vector(0 vector) after it completely stops?
Question 2 : Since the object was moving toward east and then stopped at 4 seconds, can it be said that the object changed directions when it stopped?
I mean, the direction changes : East -> None The vector changes to a null vector too.
Sorry for the bad english... it isn't my native language