A Certain Crane Can Provide a Maximum Lifting Force of 25

question 29

Multiple Choice

A certain crane can provide a maximum lifting force of 25 000 N. It hoists a 2000-kg load starting at ground level by applying the maximum force for a 2-second interval; then, it applies just sufficient force to keep the load moving upward at constant speed. Approximately how long does it take to raise the load from ground level to a height of 30 m?

• A)2 s
• B)5 s
• C)7 s
• D)9 s
• E)10 s

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Definitions:

Preconceived Perceptions

Opinions or attitudes formed in advance without adequate information or experience.

Support Life

Activities or systems that provide essential assistance or enable living organisms to maintain health, well-being, and functionality.

All-or-Nothing Thinker

A cognitive distortion where individuals see situations as either completely perfect or a complete failure, with no middle ground.

Pros and Cons

The advantages and disadvantages of a particular decision, action, or situation.