A Wheel Rotating About a Fixed Axis Has a Constant

question 20

Multiple Choice

A wheel rotating about a fixed axis has a constant angular acceleration of 4.0 rad/s². In a 4.0-s interval the wheel turns through an angle of 80 radians. Assuming the wheel started from rest, how long had it been in motion at the start of the 4.0-s interval?

• A) 2.5 s
• B) 4.0 s
• C) 3.5 s
• D) 3.0 s
• E) 4.5 s

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Definitions:

Forward Contract

A financial agreement between two parties to buy or sell an asset at a specified future time at a price agreed upon today.

Forward Rate

The interest rate agreed upon now for a loan to be made or currency to be delivered at a future date, used in forward contracts and currency exchange.

Future Spot Rate

The anticipated exchange rate at which one currency will be exchanged for another in the spot market at a future date.

Cash Flow Hedge

A risk management technique used by companies to protect against the risk associated with fluctuations in cash flows, typically related to future interest or currency exchange rates.