0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

When applying the equations of kinematics for an object moving in one dimension, which of the following statements must be true?

A
The velocity of the object must remain constant.
B
The acceleration of the object must remain constant.
C
The velocity of the object must increase with time.
D
The position of the object must increase with time.
E
The velocity of the object must always be in the same direction as its acceleration.
Solution
Verified by Toppr

Correct option is B. The acceleration of the object must remain constant.
The derivation of the equations of kinematics for an object moving in one dimension was based on the assumption that the object had a constant acceleration. Thus, (b) is the correct answer. An object would have constant velocity if its acceleration were zero, so (a) applies to cases of zero acceleration only. The speed (magnitude of the velocity) will increase in time only in cases when the velocity is in the same direction as the constant acceleration, so (c) is not a correct response. An object projected straight upward into the air has a constant downward acceleration, yet its position (altitude) does not always increase in time (it eventually starts to fall back downward) nor is its velocity always directed downward (the direction of the constant acceleration). Thus, neither (d) nor (e) can be correct

Was this answer helpful?
2
Similar Questions
Q1
When applying the equations of kinematics for an object moving in one dimension, which of the following statements must be true?
View Solution
Q2
When an image of an object is formed by a plane mirror, which of the following statements is always true? More than one statement may be correct.
View Solution
Q3

Which of the following statement must always be true?

I.If an objects acceleration is zero, then its speed must remain constant.

II. If an objects acceleration is constant, then it must move in a straight line.

III. If an objects speed remains constant, then its acceleration must be zero.


View Solution
Q4

What are the important derivations in unit and dimension, calculus ,motion in One dimension, vectors, motion in two dimension, circular kinematics?

View Solution
Q5
Can the equations of kinematics be used in a situation in which the acceleration varies in time? Can they be used when the acceleration is zero?
View Solution