A Worker in a Warehouse Uses a Rope Passing Through

question 53

Multiple Choice

A worker in a warehouse uses a rope passing through some pulleys to lift a heavy crate. The worker exerts a force five times less than the weight of the crate but has to move the rope four times as far as the crate moves. This situation

• A) can happen because the extra distance traveled makes up for the smaller force applied.
• B) can happen because there is friction in the pulleys so the work done by the worker will not equal the work done on the crate.
• C) cannot happen because a crate that heavy would lift the worker, rather than the worker lifting the crate.
• D) cannot happen because the work done by the worker is less than the work done on the crate.

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Definitions:

Profit (Loss)

The financial result of operations, where profit indicates revenue exceeds expenses, and loss indicates expenses exceed revenue.

Sale Price

The final price of a product or service after any discounts or promotions have been applied.

Net Profit

The total earnings after all expenses and taxes have been subtracted from revenue.

Overhead Expenses

costs related to the day-to-day running of a business but not directly tied to producing goods or services.