A block of mass m is released from rest at a height R above a horizontal surface. The acceleration due to gravity is g. The block slides along the inside of a frictionless circular hoop of radius R. 
-Which one of the following expressions gives the speed of the mass at the bottom of the hoop?
Definitions:
Quality of Design
How well a product's design meets customers' needs and expectations in terms of functionality, aesthetics, and overall performance.
Quality of Conformance
The degree to which a product or service meets the specified design or specifications and quality standards during the manufacturing or delivery process.
Excellence
The quality of being outstanding or extremely good in performance or quality.
Activity-Based Costing
A costing methodology that assigns costs to products or services based on the resources they consume, aiming to provide more accurate information on the profitability of each product or service.
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