Clicker Questions - momentum

Clicker Questions - momentum - Q1 Review Which of these...

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Q1 Review ( ) r r v i f r r r t = Δ Which of these equations correctly relates the average velocity of an object to the object’s initial and final positions? (That is, which could you use to predict the final position of an object if you knew its initial position and average velocity?) 1) avg 2) ( ) i f f i v r r r avg r t t = + r 3) ( ) i f i f v r r r avg r t t = + r 4) () i f i f t t v r r + = avg r r r f f 5) v r avg r r t =
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Q2 Which of the following can NOT be true for an object moving in a straight line at a constant speed? 1. Nothing is interacting with the object (it is in interstellar space, far from all other objects). 2. The object is experiencing a net interaction. 3. The object is experiencing multiple interactions, and these interactions add up to zero. 4. The object has no net interaction with the rest of the world.
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Q3 Three protons travel through space at three different speeds. Proton A: 290 m/s
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Clicker Questions - momentum - Q1 Review Which of these...

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