Two Blocks Are Connected by a Massless String That Passes

question 70

Multiple Choice

Two blocks are connected by a massless string that passes over a massless pulley, as shown. In the absence of friction, how does the tension force exerted by the string on the 250 N block compare with the tension force exerted by the string on the 350 N block?

• A) The force on the 250 N block is smaller by a factor of 0.71.
• B) The force on the 250 N block is larger by a factor of 1.4.
• C) The force on the 250 N block is always equal to its weight.
• D) The force on the 250 N block is equal to the weight of the 350 N block.
• E) The two forces are equal.

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Definitions:

Total Cost-Plus

A pricing strategy where the selling price of a product is determined by adding a profit margin to the total cost of manufacturing or producing the product.

Mark-Up Percentage

A measure of how much the cost of a product is increased to arrive at its selling price, typically to cover overheads and profit.

Mark-Up Percentage

The percentage added to the cost price of products to determine the selling price, intended to cover overhead and profit.

Total Variable Cost

The sum of all variable costs that change in proportion with the level of output or activity.