A Mass M Is Released from a Height 80 Cm $\mu$

question 45

Multiple Choice

A mass m is released from a height 80 cm from the right-hand side of the track shown in the diagram at right. There is only friction acting along the horizontal portion 30 cm either side of the midpoint O with a kinetic coefficient of friction of $\mu$ _k = 0.4. Determine (i) how many times does the mass m pass through the midpoint O, and (ii) how far from the midpoint does it come to rest.

• A) 6, .1 m
• B) 6, .2 m
• C) 3, .2 m
• D) 3, .1 m
• E) 1, 2 cm

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Definitions:

Carbohydrate Diet

A dietary plan focusing on foods high in carbohydrates, including sugars and starches, often for energy or weight management.

Calcium Diet

A dietary plan that emphasizes foods high in calcium, essential for bone health and various metabolic processes.

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A medical condition characterized by excessive body fat accumulation, significantly raising the risk of health problems like heart disease, diabetes, and high blood pressure.

Sodium Reabsorption

The process by which the kidneys filter sodium from the urine and return it to the blood, maintaining fluid and electrolyte balance in the body.