The three blocks shown are released from rest and are observed to move with accelerations that have a magnitude of 1.5 m/s2. What is the magnitude of the friction force on the block that slides horizontally? Disregard any pulley mass or friction in the pulley and let M = 2.0 kg. 
Definitions:
Misery Index
An economic indicator calculated by adding the unemployment rate to the inflation rate, aiming to measure the health of an economy.
Unemployment Rate
This measures the percentage of the labor force that is jobless and actively seeking employment.
Inflation
The velocity at which prices for various goods and services climb, which in turn diminishes the purchasing power.
Temporary-Help Industry
The sector of the workforce that provides temporary workers to businesses, often to fill temporary vacancies or peak workload times.
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