A block of mass 4 kg is pressed against a wall by two perpendicular horizontal forces as shown in the figure. F1 is perpendicular to the wall and F2 is parallel to the wall. μs=0.8,μk=0.5 and g=10 ms−2 For F1=75 N and F2=30 N, the block remains at rest on the wall. Then, the force of friction (in N) is

A block of mass 4 kg is pressed against a wall by two perpendicular ho

1.	A block of mass 4 kg is pressed against a wall by two perpendicular horizontal forces as shown in the figure. F1 is perpendicular to the wall and F2 is parallel to the wall. μs=0.8,μk=0.5 and g=10 ms−2 For F1=75 N and F2=30 N, the block remains at rest on the wall. Then, the force of friction (in N) is
Answer» A block of mass $4 kg$ is pressed against a wall by two perpendicular horizontal forces as shown in the figure. $F_{1}$ is perpendicular to the wall and $F_{2}$ is parallel to the wall. $μ_{s} = 0.8, μ_{k} = 0.5$ and $g = 10 {ms}^{- 2}$ For $F_{1} = 75 N$ and $F_{2} = 30 N$ , the block remains at rest on the wall. Then, the force of friction (in $N$ ) is

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