A 10-Kg Object Moving in a Certain Direction Has a Kinetic

question 87

Multiple Choice

A 1.0-kg object moving in a certain direction has a kinetic energy of 2.0 J. It hits a wall and comes back with half its original speed. What is the kinetic energy of this object at this point?

• A) 0.25 J
• B) 0.50 J
• C) 1.0 J
• D) 2.0 J
• E) 4.0 J

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Definitions:

Root Reinforcement

Additional material added at the root of a weld joint to ensure the joint has sufficient thickness and strength.

Groove Welds

Welds that fill in the groove between two adjacent components to join them, used in various types of joint designs.

Contour

The outline or surface form of an object, which can be represented graphically or through mathematical equations in design and analysis.

Weld Symbol

A weld symbol is a set of standardized symbols used in blueprints and technical drawings to specify the type, size, and other details of a weld to be made on metal parts.