A 30-Kg Block Is on a Frictionless Horizontal Surface $\degree$ Above the Horizontal Is Applied to the Block

question 76

Multiple Choice

A 3.0-kg block is on a frictionless horizontal surface.The block is at rest when,at t = 0,a force (magnitude P = 2.0 N) acting at an angle of 22 $\degree$ above the horizontal is applied to the block.At what rate is the force P doing work at t = 2.0 s?

• A)2.3 W
• B)2.0 W
• C)1.4 W
• D)1.7 W
• E)1.2 W

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Definitions:

MPC

The marginal propensity to consume, which represents the proportion of an increase in income that is spent on consumption rather than being saved.

Saving

The share of earnings not used for immediate spending but saved or invested for future needs.

Consumption Function

An economic formula representing how consumer spending is related to various factors, including income levels.

Personal Saving

Personal saving is the portion of personal income that is not expended on consumption or taxes and is instead saved for future use.