Two Blocks Are Accelerated Across a Horizontal Frictionless Surface as Shown

question 50

Multiple Choice

Two blocks are accelerated across a horizontal frictionless surface as shown. Frictional forces keep the two blocks from sliding relative to each other, and the two move with the same acceleration. If F = 1.2 N and M = 1.0 kg, what is the horizontal component (frictional force) of the force of the large block on the small block?

• A) 0.40 N to the left
• B) 0.80 N to the right
• C) 0.40 N to the right
• D) 0.80 N to the left
• E) 1.20 N to the left

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Definitions:

Fitted Values

Predicted values generated by a statistical model that approximate the observed data points.

Autoregressive Model

A model for forecasting a time series that uses the relationship between an observation and a number of lagged observations.

Time Series Data

Data points collected or recorded at regular time intervals, used for analyzing trends, cycles, and seasonal variations over time.

Consecutive Residuals

The differences between observed and predicted values in a sequence, following each other without interruption.