coach belichick is missing tom brady and is pacing on the sideline. he starts in the middle of the field and…

coach belichick is missing tom brady and is pacing on the sideline. he starts in the middle of the field and walks 25 meters towards the patriots end zone then back 30 meters towards the jets end zone. this takes him 15 seconds to do. (please us g = 10 m/s/s for these problems and round to the nearest 100th) what magnitude of the coaches displacement during this time? 3.67 m/s what is the coaches speed during this time? note: on the real exam you will have to show all work including units and may be asked to create a graph or free body diagram show hint
Answer
Explanation:
Step1: Calculate displacement
Displacement is the net change in position. He walks 25 m towards one - end and then 30 m back. Displacement $d=25 - 30=- 5$ m. The magnitude of displacement is $|d| = 5$ m.
Step2: Calculate speed
Speed is total distance traveled divided by time. Total distance $s=25 + 30=55$ m. Time $t = 15$ s. Speed $v=\frac{s}{t}=\frac{55}{15}\approx3.67$ m/s.
Answer:
Magnitude of displacement: 5 m Speed: 3.67 m/s