Problem: One of the difficulties in studying mechanics is that many common words are used with highly specific technical meanings, among them velocity, acceleration, position, speed, and displacement. The series of questions in this problem is designed to get you to try to think of these quantities like a physicist.Answer the questions in this problem using words from the following list: A. position B. direction C. displacement D. coordinates E. velocity F. acceleration G. distance H. magnitude I. vector J. scalar K. components A vector has, by definition, both _______ and direction. Enter the letter from the list given in the problem introduction that best completes the sentence.Once you have selected a coordinate system, you can express a two-dimensional vector using a pair of quantities known collectively as  _______. Enter the letter from the list given in the problem introduction that best completes the sentence. Speed differs from velocity in the same way that  _______ differs from displacement. Enter the letter from the list given in the problem introduction that best completes the sentence.

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A vector has, by definition, both Magnitude and direction. 

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Problem Details

One of the difficulties in studying mechanics is that many common words are used with highly specific technical meanings, among them velocity, acceleration, position, speed, and displacement. The series of questions in this problem is designed to get you to try to think of these quantities like a physicist.

Answer the questions in this problem using words from the following list: 

A. position 

B. direction 

C. displacement 

D. coordinates 

E. velocity 

F. acceleration 

G. distance 

H. magnitude 

I. vector 

J. scalar 

K. components 


A vector has, by definition, both _______ and direction. 

Enter the letter from the list given in the problem introduction that best completes the sentence.


Once you have selected a coordinate system, you can express a two-dimensional vector using a pair of quantities known collectively as  _______. 

Enter the letter from the list given in the problem introduction that best completes the sentence. 


Speed differs from velocity in the same way that  _______ differs from displacement. 

Enter the letter from the list given in the problem introduction that best completes the sentence.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Intro to Motion in 2D: Position & Displacement concept. You can view video lessons to learn Intro to Motion in 2D: Position & Displacement. Or if you need more Intro to Motion in 2D: Position & Displacement practice, you can also practice Intro to Motion in 2D: Position & Displacement practice problems.

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Based on our data, we think this problem is relevant for Professor Wu's class at UCONN.