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For motion in two or three dimensions, what is the angle between velocity and acceleration vectors?

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in Engineering Physics I by (558k points)
For motion in two or three dimensions, what is the angle between velocity and acceleration vectors?

(a) 0°

(b) 180°

(c) Between 0° and 180°

(d) 90°

I got this question in an international level competition.

This is a very interesting question from Motion in a Plane topic in section Laws of Motion of Engineering Physics I

1 Answer

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Correct answer is (c) Between 0° and 180°

For explanation: For motion in one dimension, the velocity and acceleration are always along the same line either in the same direction or in opposite direction. For motion in two or three dimensions, the angle between velocity and acceleration vectors may have any value between 0° and 180°.

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