Question

Review Correct Learning Goal: To practice Tactics Box 4.1 Finding the Acceleration Vector. Suppose an object has an initial velocity ū at time ty and later, at time tp, has velocity of. The fact that the velocity changes tells us that the object undergoes an acceleration during the time interval At = tp-t. From the definition of acceleration, Part B a = of --e1 = Au tf- At? Below is another motion diagram for an object that moves along a curved path. The dots represent the position of the object at five subsequent instants, ti, ta, ts. tu, and Is. The vectors 021, 032, 043. and 054 represent the average velocity of the object during the four corresponding time intervals. Draw the acceleration vectors a31 and 53 representing the changes in velocity of the object during the time intervals Atsi = t3-t and Ats3 = ts - t3, respectively. Draw the vectors starting at the appropriate black dots. The location, orientation, and length of the vectors will be graded. we see that the acceleration vector points in the same direction as the vector Au. This vector is the change in the velocity Au = Up - Ūj, so to know which way the acceleration vector points, we have to perform the vector subtraction up-u. This Tactics Box shows how to use vector subtraction to find the acceleration vector. Figure No elements selected 1 of 1 P Pearson

Answer 1

- Vara Vez Resolve 4 & V3 gor and agi = Ave V 32- Similarly resolve Vyz qul Voy Av t -t acceleration will be tonlash the center of currature