A 16-Kg Block on a Horizontal Frictionless Surface Is Attached to to an Ideal

question 39

Multiple Choice

A 1.6-kg block on a horizontal frictionless surface is attached to an ideal massless spring whose spring constant is 190 N/m.The block is pulled from its equilibrium position at x = 0.00 m to a displacement x = +0.080 m and is released from rest.The block then executes simple harmonic motion along the horizontal x-axis.What is the velocity of the block at time
T = 0.40 s?

• A)0.82 m/s
• B)-0.82 m/s
• C)0.30 m/s
• D)-0.30 m/s
• E)0.00 m/s

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Definitions:

Access Ramp

A sloped surface designed to allow people with disabilities to enter or exit buildings.

Horizontally

In a direction parallel to the horizon or to the x-axis in a plane coordinate system.

Horizontal Distance

Horizontal distance is the measure of length between two points along a straight line that runs parallel to the x-axis in a coordinate plane.

Pitch

A presentation or proposal designed to persuade or inform its audience.