A 12-Kg Block on a Horizontal Frictionless Surface Is Attached

question 58

Multiple Choice

A 12-kg block on a horizontal frictionless surface is attached to a light spring (force constant = 0.80 kN/m) . The block is initially at rest at its equilibrium position when a force (magnitude P = 80 N) acting parallel to the surface is applied to the block, as shown. What is the speed of the block when it is 13 cm from its equilibrium position?

• A) 0.78 m/s
• B) 0.81 m/s
• C) 0.71 m/s
• D) 0.58 m/s
• E) 0.64 m/s

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An optical instrument used for viewing very small objects, such as mineral sections or cells, typically magnified several hundred times.

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Adhesion

The process by which two surfaces are held together by physical or chemical means; also refers to the abnormal sticking together of tissues in the body.

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