Question

For $F_1=150N$ and $F_2=100N$, find the direction and magnitude of friction force acting on the block.

• A. 90 N, making an angle of $ta{n}^{-1}(\frac{2}{5})$ with the horizontal in the upward direction.
• B. 75 N, making an angle of $ta{n}^{-1}(\frac{2}{5})$ with the horizontal in the upward direction.
• C. 107.7 N, making an angle of $ta{n}^{-1}(\frac{2}{5})$ with the horizontal in the upward direction.
• D. Zero.

Answer 1

The correct option is B 75 N, making an angle of $ta{n}^{-1}(\frac{2}{5})$ with the horizontal in the upward direction.