Kieran Takes Off from Rest Down a 50 M High,10°

question 72

Multiple Choice

Kieran takes off from rest down a 50 m high,10° slope on his jet-powered skis.The skis have a thrust of 280 N parallel to the surface of the slope.The combined mass of skis and Kieran is 50 kg (the fuel mass is negligible) .Kieran's speed at the bottom is 40 m/s.What is the coefficient of kinetic friction of his skis on snow?

• A) 0.47
• B) 0.58
• C) 0.23
• D) 0.29

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Definitions:

Completing Production

The phase in the manufacturing process where products are finished and ready for sale.

Homogeneous Units

Units that are uniform in nature and use, often used in production or service contexts to measure output or productivity.

Net Income Recognition

The process of recording earnings that accurately reflect the net income earned by a company during a specific time period, adhering to the principles of revenue recognition and expense matching.

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