A 40-Kg Block Slides Along a Frictionless Surface with a Constant

question 23

Multiple Choice

A 4.0-kg block slides along a frictionless surface with a constant speed of 5.0 m/s as shown. Two seconds after it begins sliding, a horizontal, time-dependent force is applied to the mass. The force is removed eight seconds later. The graph shows how the force on the block varies with time.
-What is the magnitude of the total impulse of the force acting on the block?

• A)20 N . s
• B)42 N . s
• C)48 N . s
• D)54 N . s
• E)60 N . s

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Definitions:

Loaves

Units of bread or any baked product that are shaped and sized for slicing, often made from a dough or batter.

Pounds

A unit of weight commonly used in the United States and Britain, equivalent to 0.453592 kilograms.

Indifference Curves

Graphical representations in microeconomics to show combinations of two goods that provide the consumer with the same level of satisfaction.

Price Rises

An increase in the cost of goods or services, affecting the buying behavior of consumers and potentially leading to changes in market dynamics.