Answer:
a. 18.82m/s
b. 13.27m/s
c. 7.67m/s
d. A
Explanation:
For Questions a - c.
Pls see the explanation at attached file
Q d.
The tension at the middle is the average of the top and bottom tensions, and the speed at the middle is the average of the top and bottom speeds because the speed is proportional to the tension.
Adding speed at the bottom with speed at the top together as follows
(18.82 + 7.67)/2 = 26.49/2 = 13.25m/s
This value is approximately equals to 13.27m/s which is for speed at the middle of the rope.
Also speed is proportional to tension