As Shown in the Figure,two Blocks Are Connected by a Light

question 42

Multiple Choice

As shown in the figure,two blocks are connected by a light string that passes over a frictionless pulley having a moment of inertia of 0.0040 kg ∙ m² and diameter 10 cm.The coefficient of kinetic friction between the table top and the upper block is 0.30.The blocks are released from rest,and the string does not slip on the pulley.How fast is the upper block moving when the lower one has fallen 0.60 m?

• A)1.2 m/s
• B)5.4 m/s
• C)3.2 m/s
• D)2.0 m/s
• E)1.4 m/s

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Definitions:

Longing Steel Futures

The act of buying futures contracts in steel, betting that the price of steel will increase over the term of the contract.

Treasury Bond

Long-term, fixed-interest U.S. government debt securities with maturities over ten years, considered low-risk investments.

Futures Contract

A contractual agreement regulated by law, specifying the sale or purchase of an item at a fixed price, to be executed at a later date.

Spot Price

The immediate market value at which certain assets, like commodities, currencies, or securities, are available for purchase or sale with instant delivery.