Physics · Kinematics
Which of the following statements best describes the relationship between velocity and acceleration in different dimensions?
- 1In three-dimensional motion, velocity and acceleration must always act in the same direction.
- 2In one-dimensional motion, velocity and acceleration lie along the same line, either in the same or opposite direction.✓
- 3In two-dimensional motion, acceleration must always act opposite to velocity.
- 4In one-dimensional motion, velocity and acceleration are always perpendicular to each other.
Correct answer
In one-dimensional motion, velocity and acceleration lie along the same line, either in the same or opposite direction.
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