A 20-Kg Solid Disk Rolls Without Slipping on a Horizontal Surface

question 55

Multiple Choice

A 2.0-kg solid disk rolls without slipping on a horizontal surface so that its center proceeds to the right with speed 5.0 m/s.
The point A is the uppermost point on the disk and the point B is along the horizontal line that connects the center of the disk to the rim.
-What is the instantaneous speed of point A with respect to the ground?

• A)zero m/s
• B)2.5 m/s
• C)5.0 m/s
• D)7.1 m/s
• E)10.0 m/s

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Definitions:

Price Elasticity

An assessment of the responsiveness of product demand to variations in its cost.

Demand Curve

A graphical representation showing how the quantity of a good demanded by consumers changes as its price changes, holding other factors constant.

Cross-Price Elasticity

Measures the responsiveness of demand for one good to a change in the price of another good.

Goods Relationship

Refers to the connections and interactions between various goods, including how the production, consumption, or value of one can affect another.