Describing Motion using visual representations Carts A and B move along a horizo
ID: 1392646 • Letter: D
Question
Describing Motion using visual representations Carts A and B move along a horizontal track The strobe (light flash) diagram shows the locations of the carts at instants (in lime) 1-5- each instant is separated by equal time internals. Compare the speeds of the Cart B to Cart A at the following points in time: at instant 2? Describe the comparison at instant 3? Describe. During a very very small time interval from just before instant 2 until just after instant 2, does the distance between Can A and Cart B increase, decrease, or stay the same? Explain ....Consider the following response to the above question: "For the small interval containing instant 2, Cart B is ahead and speeding up, so the distance between the carts must be increasing." Do you agree or disagree with the above student response? Explain. Is there any time interval during which Cart A and Cart B have the same average velocity? If so, identify the interval(s) and explain. If not, explain why not. Is there any time interval at which Cart A and Can B have the same instantaneous velocity? If so. identify- that instant (e.g. "at instant 1" or "between instant 2 and 3") and explain. If not. explain why not.Explanation / Answer
B) i) at instant 2 cart B have higher speed than cart A.
ii) at instant 3 both have same speed.
C decrease