A 070-Kg Disk with a Rotational Inertia Given by MR²/2 Is

question 29

Multiple Choice

A 0.70-kg disk with a rotational inertia given by MR²/2 is free to rotate on a fixed horizontal axis suspended from the ceiling.A string is wrapped around the disk and a 2.0-kg mass hangs from the free end.If the string does not slip then as the mass falls and the cylinder rotates the suspension holding the cylinder pulls up on the mass with a force of:

• A)6.9 N
• B)9.8 N
• C)16 N
• D)26 N
• E)29 N

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Definitions:

Federal Reserve

The Federal Reserve, often referred to as "the Fed," is the central banking system of the United States, responsible for setting monetary policy, regulating banks, maintaining financial stability, and providing banking services to governmental agencies.

Reserve Ratio

The reserve ratio is the fraction of deposits that regulators require a bank to hold in reserve and not lend out. This is a tool used by central banks to control the money supply.

Goldsmith

A craftsman who makes jewelry, utensils, and various art pieces out of gold, and historically also dealt in gold, silver, and banking activities.

Gold Coins

These are coins made primarily or entirely of gold, often used historically as currency and now commonly collected as investment or numismatic items.