Chapter 6.3, Problem 1P

The 783-N force is applied to the 117-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force Fexerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. P = 783 N 22° H, = 0.81 H = 0.57 %3! Answer: F = N

The 700-N force is applied to the 100-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block.

The 498-N force is applied to the 89-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. H₂ = 0.66 Hk = 0.52 36° P = 498 N

The 89-lb force P is applied to the 200-lb crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume μ = 0.52, k = 0.40. P Answer: F = i Hs HR lb

The 56-lb force P is applied to the 150-Ib crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force Fexerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume u, = 0.38, µz = 0.30. P Answer: F = i Ib

The 114-lb force P is applied to the 220-lb crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume μ = 0.47, Mk = 0.36. P Answer: F = i H₂ Hk lb

The 665-N force is applied to the 112-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. H₂ = 0.66 Hk = 0.43 Answer: F = 37° N P = 665 N

The 463-N force is applied to the 89-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. P = 463 N 32° H = 0.60 H = 0.44 Answer: F = 276.20 is wrong

The 575-N force is applied to the 98-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. H = 0.66 Hk = 0.46 Answer: F = i 35° N P = 575 N