The Figure Shows a Block of Mass M

question 30

Multiple Choice

The figure shows a block of mass m resting on a slope. The block has coefficients of friction with the surface of the slope. It is connected using a very light string over an ideal pulley to a hanging block of mass 2.0 kg. The string above the slope pulls parallel to the surface. What is the minimum mass m so the system will remain at rest when it is released from rest?

• A) 3.3 kg
• B) 2.1 kg
• C) 1.3 kg
• D) 3.6 kg

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Definitions:

Mining Site

A specific area where minerals are extracted from the earth, which can include both underground and surface mining operations.

Depletion

The allocation of the cost of natural resources over their useful life, typically related to mining, quarrying, drilling, or timber operations.

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The gradual write-off of the cost of an intangible asset over its useful life, similar to depreciation for tangible assets.

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