A Block with Mass M, on the End of a String

question 34

Multiple Choice

A block with mass M, on the end of a string, moves in a circle on a horizontal frictionless table as shown.As the string is slowly pulled through a small hole in the table:

• A)the angular momentum of M remains constant
• B)the angular momentum of M decreases
• C)the kinetic energy of M remains constant
• D)the kinetic energy of M decreases
• E)none of the above

---

Definitions:

Endorsement

The signing of one’s name on the back of a negotiable instrument for the purpose of negotiating it to another.

Premiums

Payments made regularly to an insurance company in exchange for coverage, representing the cost of the insurance policy.

Co-insurance Clause

A provision in insurance policies requiring the policyholder to bear a portion of the loss by maintaining coverage of a specified percentage of the value of the property to receive full reimbursement.

Fireproof

The quality of being resistant to or capable of withstanding damage by fire.