- #1
sachaw
- 3
- 2
In a recent exam, the question came up ""If the object has zero acceleration the object must be at rest" is this statement:
A: Always true
B: True in space
C: Sometimes true
D: Never true"
Obviously we can cross of the first two, but for the other two its not so easy, for this question I answered D- never true as it states that "the object MUST be at rest", if I understand the word "must" correctly it should mean that under no circumstances the object will move and be no longer at rest, I proceed to ask the teacher that wrote the question, from what he told me that the question was meant to ask whether an object with zero acceleration can be at rest, but due to the wording (replacing "can be" with "must") it changes the question completely, therefore changing the answer.
A: Always true
B: True in space
C: Sometimes true
D: Never true"
Obviously we can cross of the first two, but for the other two its not so easy, for this question I answered D- never true as it states that "the object MUST be at rest", if I understand the word "must" correctly it should mean that under no circumstances the object will move and be no longer at rest, I proceed to ask the teacher that wrote the question, from what he told me that the question was meant to ask whether an object with zero acceleration can be at rest, but due to the wording (replacing "can be" with "must") it changes the question completely, therefore changing the answer.