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
a.
6.0 N
b.
5.1 N
c.
5.5 N
d.
4.6 N
e.
3.7 N
d
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