1 Answer

Selvaram G · Answer 1 · 2023-02-08T12:18:21+0000

Answer:

40 N

Step-by-step explanation:

Both forces to the right are friction forces. The 40 N force has to be the kinetic friction force because kinetic friction is always less than static friction. So, the 80 N force has to be the static friction force, which is always greater than the kinetic friction.

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