3. Four motion diagrams are given below. The dots in each diagram represent the

Question

3. Four motion diagrams are given below. The dots in each diagram represent the posion of a moving object with equal intervals of time from each dot to the next. The direction of motion is indicated by the arrow. (a) State w hether each motion diagram represents increasing speed, decreasing speed, or constant speed. C: D: A: B: (b) State whether each motion diagram represents increasing, decreasing, or constant acceleration. A: B: (c) Rank the speed of the object at the first dot in each motion diagram, greatest first. Explain briefly.

Explanation / Answer

Solution:

Let us go to the basics first.

Part (c) We need to answer for part (c) as asked.

As suggested in question, we have to evaluate the speed of each object at their first dot.

Clearly, Speed of A = 12 spaces per unit given time interval (Refer given figure)

Speed of B = 10 spaces per unit given time interval (Refer given figure)

Speed of C = 4 spaces per unit given time interval (Refer given figure)

Speed of D = 4 spaces per unit given time interval (Refer given figure)

Thus, ranking of the speed of object with greatest first:

A > B > C = D (Answer)

Thanks!!!

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.