Jordan B.

asked • 1d

help me solve this

 Walking is difficult, especially on just two legs. Think of how long it takes for a human baby to “graduate” from crawling on all fours to standing upright and walking. Engineers working to develop robots capable of walking on two legs, like humans do, face many challenges. Still, much progress has been made. Some two-legged robots can run, and some can even walk up or down a flight of stairs (idk about you but this scares me). The position time graph below shows the progress of a typical two-legged robot that walked, stopped for a few seconds, and then walked backwards. 

A hiker starts at their campsite and walks at 2 m/s northward to 30 minutes, then turns and walks due west at 1 m/s for 1 hr. 

a. Calculate the distance the hiker walks in 1.5 hrs. 

b. Calculate the hiker’s displacement from the campsite after walking for 1.5 hrs. c. Explain the difference between distance and displacement.


a. What was the velocity of the robot as it walked forward? 

b. What was the velocity of the robot as it walked backwards? 

c. What was the displacement of the robot between the times t = 2.0 s and t = 8.0 s? 

d. What was the average velocity of the robot between the times t = 2.0 s and t = 8.0 s?


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