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- Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks, as shown below. The coefficient of kinetic friction between the blocks and the surface is 0.25. If each block has an acceleration of 2.0m/s2to the right, what is the magnitude Fof the applied force?A picture frame hung against a wall is suspended by two wires attached to its upper corners. If the two wires make the same angle with the vertical, what must this angle be if the tension in each wire is equal to 0.75 of the weight of the frame? Show the Figure/FBD, given and formula usedA block weighs 100. N and rests on a horizontal surface. If Ms = 0.50 and uk = 0.20 between the block and the horizontal surface, then (a) What is the magnitude of the frictional force acting on the block? Justify your What is the magnitude of the frictional force acting on the block if a horizontal force of 35.0 N is now used to push the block? Justify your answer with a calculation. What is the magnitude of the minimum horizontally applied force that will start the block sliding? Justify your answer with a calculation. If the magnitude of the applied horizontal force on the block is 55.0 N, what is the magnitude of the frictional force acting on the block? Justify your answer with a calculation.
- A push and a pull of magnitude F1=3.9 N and F2=5.8 N act on a block of weight 11 N resting and not moving on a rough surface as shown in the figure linked below. The push F1 is horizontal, while the pull F2 acts at angle θ=46 deg with the horizontal How large is the friction force exerted by the surface on the block?A uniform plank with length 2 m, mass 30k is supported by three ropes as shown by the blue vectors in the above figure. If the person's weight is 700 N, d = 0.5 m from the left, find tension T1,T2 and T3The sprinter from problem 9 is now out of the blocks and running. If the coefficient of static friction between the track shoe and the track is 0.80, and the sprinter exerts a vertical force of 2000 N downward on the track, what is the maximum horizontal force he can generate under his shoe?
- The figure below shows a bird feeder that weighs 193.9 N. The feeder is supported by a vertical cable, which is in turn tied to two cables, each of which is attached to a horizontal post. The left cable makes a 60° angle with the post, while the right cable makes a 30° angle. What is the tension in each cable (in N)? left cable=? right cable=? bottom cable=?A contestant in a winter sporting event pushes an mm kg block of ice across a frozen lake by applying a force FF at an angle θθ below the horizontal as shown. Assume that the coefficient of static friction for ice on ice is 0.0300, and the coefficient of kinetic friction for the same is 0.0100. Let to the right be the positive x direction and up be the positive y direction for your equations. Obtain a numeric value, in newtons, for the magnitude of the maximum applied force, F, consistent with static friction when the force makes an angle 32° below the horizontal and the mass of the block is 63 kg. Obtain a numeric value for the acceleration, a, in meters per squared seconds, when the mass of the block is 63 kg and the angle of the rope is 32° below the horizontal.In the figure, the weight w is 56.4 N. a. What is the tension in the diagonal string? b. Find the magnitudes of the horizontal forces F1 and F2 that must be applied to hold the system in the position shown.
- I don't understand why Fs <= Fk. What does the F in (1) and (2) stand for? If it's force applied, wouldn't F = Fs + Fk for box 2, and (F - Fs - Fk) = Fs for box 1? My thinking is that the Force applied on box 2 minus the force of kinetic friction and the force of static friction applied by Box 1 on 2 would equal to the net force. Then the net force of box 2 would cause the same netforce on box 1, if box 1 isn't moving, then it's Fs should be equal to that net force applied on box 1. Therefore Force applied wouldn't be equal to Static Friction Force, and shouldn't it be bigger than the Kinetic Friction Force since it's moving in the direction of Force applied?Hi! Please ndicate the given, diagram, FBD, and the solution with no shortcuts, Thanks! 5) A body system has three forces which are all at rest and in equilibrium. F1 is measured at 170 N whilst F3 is equal to340 N. The direction of each force is shown in the figure below. To balance the force within the body system, computefor the magnitude of F2 and its direction.What is coefficient of static friction between a box of mass M and a floor if applied to the center of the box side force F makes box sliding or tilting equally possible?