Two Boxes,A and B,are Connected by a Horizontal String S

question 57

Multiple Choice

Two boxes,A and B,are connected by a horizontal string S on a horizontal floor.A very light wire pulls horizontally on box B,as shown in the figure,exerting a force of 100 N.The Newton's third law pair force to this pull is

• A)the pull that box B exerts on string S.
• B)the pull that string S exerts on box B.
• C)the pull that string S exerts on box A.
• D)the pull that box B exerts on the wire.
• E)the force that box A exerts on box B.

---

Definitions:

Seminal Vesicle

A pair of glands that open into the vas deferens near its junction with the urethra and secrete many of the components of semen.

Epididymis

A tightly coiled tube situated at the back of the testicle where sperm are stored and mature.

Scrotum

The pouch of skin that contains and protects the testicles, as well as regulates their temperature.