In the third procedure, a motion sensor measures the distance of a cart in time;
ID: 1432870 • Letter: I
Question
In the third procedure, a motion sensor measures the distance of a cart in time; relative distance from the motion sensor. (Remeber how you measured your height in exp 2) After the cart is released by the spring, the distance that motions sensor measures in a graph of displacement vs. time on the computer screen i)__________. Thus, we can say that the graph has a ii)______ slope. The slop of the curve, which corresponds to a velcoity of the cart, decreases in time due to kinetic frictional force, resulting in a iii) ______ acceleration.
i) decreases, ii) negative, iii) positive
i) increases, ii) positive, iii) negative
i) decreases, ii) positive, iii) negative
i) increases, ii) positive, iii) positive
i) decreases, ii) negative, iii) negative
i) decreases, ii) positive, iii) positive
i) increases, ii) negative, iii) negative
i) increases, ii) negative, iii) positive
i) decreases, ii) negative, iii) positive
i) increases, ii) positive, iii) negative
i) decreases, ii) positive, iii) negative
i) increases, ii) positive, iii) positive
i) decreases, ii) negative, iii) negative
i) decreases, ii) positive, iii) positive
i) increases, ii) negative, iii) negative
i) increases, ii) negative, iii) positive
Explanation / Answer
Since the surface is frictionalless, The correct choice is
i) increases, ii) positive, iii) positive