1. What is the total distance travelled by the object?
2. What is the displacement of the object after 9 seconds?
3. What is the displacement of the object during t = 2 s to t=6 s time interval?
4. At what time interval is the velocity at its maximum?
5. During which time interval is the velocity at its minimum?
Answers & Comments
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1. What is the total distance travelled by the object? 18 meters is the total distance travelled.
2. What is the displacement of the object after 9 seconds? 0 meter.
3. What is the displacement of the object during t = 2 s to t = 6 s time interval? 0 meter. (because the object did not move at the time 2s to 6s so its displacement is zero).
4. At what time interval is the velocity at its maximum? t = 0s to t = 2s. (because time 0s is the start, when 2s is the one went higher).
5. During which time interval is the velocity at its minimum? t = 2s to t = 6s. (because 2s and 6s are both in maximum (higher) so that's the answer).