Box A, of mass 10.0 kg, rests on a surface inclined at 37.0° to the horizontal. It is connected by a lightweight cord, which passes over a massless and frictionless pulley, to a second box B of mass 11.0kg as shown. The coefficient of kinetic (as well as static) friction between the inclined plane and box A is 0.300 (a) Draw a free diagram for each box. (b) Determine the acceleration of the boxes. MA 10.0 kg MB 0=37°
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- The blocks shown in the figure are connected by flexible cable passing over frictionless pulleys. At 300-lb block, the coefficients of friction are Us = 0.30 and Uk = 0.20 while at 200-lb block are Us = 0.40 and Uk is 0.30. Compute the magnitude and direction of the friction force acting on each block.A block with a mass of 9.32 kg is placed on a ramp. The ramp has an incline of ? = 20.2 degrees from the horizontal. The static coefficient of friction between the block and ramp is μs = 0.255, and the kinetic coefficient of friction between the block and ramp is μk = 0.134. A force, F, is exerted on the block as shown. Note that the force F is parallel with the ramp. What is the smallest value (magnitude) for the force, F, in Newtons that can be exerted on the block to hold the block stationary on the ramp? What is the largest value (magnitude) for the force, F, in Newtons that can be exerted on the block while still holding the block stationary on the ramp? What value (magnitude) for the force, F, is needed to move the block up the ramp at a constant speed?A block of mass m = 14kg rests on an inclined plane with a coefficient of static friction of mu_{s} = 0.11 between the block and the plane. The inclined plane is L = 6.8m long and it has a height of h = 3.95 m at its tallest point a. What angle in degrees does the plans make with respect to the horizontal B.what is the magnitude of the normal force, Fn in newtons that acts on the block C. What component of the force of gravity along with the plan fgx in newton? Will the block slide?
- A block with a mass of 10.09 kg is placed on a ramp. The ramp has an incline of ? = 25.7 degrees from the horizontal. The static coefficient of friction between the block and ramp is μs = 0.211, and the kinetic coefficient of friction between the block and ramp is μk = 0.112. A force, F, is exerted on the block as shown. Note that the force F is parallel with the ramp. What is the smallest value (magnitude) for the force, F, in Newtons that can be exerted on the block to hold the block stationary on the ramp? What is the largest value (magnitude) for the force, F, in Newtons that can be exerted on the block while still holding the block stationary on the ramp? What value (magnitude) for the force, F, is needed to move the block up the ramp at a constant speed?You are pushing a metal crate against a metal floor. The two surfaces have a static coefficient of friction of 0.62 and a kinetic coefficient of friction of 0.50. The floor is horizontal, and the crate has a mass of 25.0 kg. What is the minimum force you need to apply to get the crate moving from rest? Give your answer in units of N, to three significant figures.A block of mass m = 19.5 kg rests on an inclined plane with a coefficient of static friction of μs = 0.11 between the block and the plane. The inclined plane is L = 6.7 m long and it has a height of h = 3.35 m at its tallest point. What angle, θ in degrees, does the plane make with respect to the horizontal? What is the magnitude of the normal force, FN in newtons, that acts on the block? What is the component of the force of gravity along the plane, Fgx in newtons? Will the block slide?
- A student uses a force P of magnitude 55 N and angle 0 = 75° to push a 4.0 kg block across the ceiling of the room, as shown below. If the coefficient of kinetic friction between the block and the ceiling is 0.25, what is the magnitude of the acceleration of the block?You are pushing a box, apply Fa = 90 N. The box's mass is 25 kg. The coefficients of friction are μs =0.60 and μk = 0.4. The box was stationary when you began pushing. Calculate the frictional force magnitude exerted on the box by the floorA box is at rest on a floor. The box has a mass of 35.0 kg. A force P = 213.0 N is acting to the left at an angle = 31.5° above the horizontal as shown in the figure provided on the right. Between the box and the floor, the coefficient of static friction is Hs = 0.830 and the coefficient of kinetic friction is HK = 0.778. What is the magnitude of the normal force acting on the box? P 0 m
- A cord passing over a pulley connects two masses, as shown, where m, 3.60 kg and m,6.40 kg. The system accelerates with a magnitude of 1.10 m/s. The coefficient of kinetic friction between the masses and the incline is the same for both masses. Assume the pulley is frictionless, and the cord is massless. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) 35.0 35.0 (a) what is the coefficient of kinetic friction? (No Response (b) what is the tension (in N) in the cord? (No Response NAn object weighing 500kg is to be pulled by a man by exerting a force P. Force P is inclined at an angle of 25 deg. measured from the positive axis. The object and the floor has a coefficient of friction: static = 0.35 and dynamic = 0.15. What is the magnitude of the velocity vector of the object after 5 seconds when the magnitude of P is equal to 8,000 N? Express your answer in unit of m/s What is the total distance travelled by the object after 5 seconds when the magnitude of P is equal to 8,000 N? Express your answer in unit of m.A box of mass M = 5.0 kg is on a rough ramp inclined at an angle 0 = 30° to the horizontal as shown. The coefficient of static friction between the box and the ramp is 0.30. A person is applying a horizontal force, F, to the box in an attempt to keep it from sliding down. Find the magnitude of the minimum force the person needs to apply in this way to keep the box stationary. (A) F = 11.6 N (B) F = 15.6 N (C) F = 16.4 N (D) F = 25.4N (E) F = 36.6N Person pushing horizontally with a force F on a box of mass M = 5.0 kg that is on an incline which makes an angle 0 = 30° with the horizontal