The coefficient of static friction between the m = 3.50 kg crate and the 35.0 incline of Figure P4.41 is 0.250. What minimum force F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline? 35.0 Figure P4.41 7. [-/10 Points] DETAILS SERCP7 4.P.049. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Find the acceleration reached by each of the two objects shown in Figure P4.49 if the coefficient of kinetic friction between the 7.00 kg object and the plane is 0.340. m/s 2 A 2.00 kg block is held in equilibrium on an incline of angle 0 = 75 by a horizontal force F applied in the direction shown in Figure P4.50. If the coefficient of static friction between block and incline is Us = 0.300, determine the following. F Figure P4.50 (a) the minimum value of F IN (b) the normal force exerted by the incline on the block N Hint: Active Figure 4.21 9. [-/10 Points] DETAILS SERCP7 4.P.055. MY NOTES ASK YOUR TEACHER (a) What is the resultant force exerted by the two cables supporting the traffic light in Figure P4.55? IN -Select- v b) What is the weight of the light? 45.0' 15.0 GO.0 X 60.0 X (a) What is the minimum force of friction required to hold the system of Figure P4.58 in equilibrium? Let w1 = 120 N and W2 = 41.0 N. IN (b) What coefficient of static friction between the 120 N block and the table ensures equilibrium? (c) If the coefficient of kinetic friction between the 120 N block and the table is 0.205, what hanging weight should replace the 41.0 N weight to allow the system to move at a constant speed once it is set in motion? IN W2