Consider the figure below. (Let w1 = 120 N and w2 = 52.0 N.) An illustration shows a rectangular block of weight w1 on the horizontal surface of a table. This block is connected to another rectangular block of weight w2 by a cord that runs over a pulley placed diagonally at the corner of the horizontal surface of the table. The rectangular block of weight w2 is suspended vertically by the side of the tabletop. (a) What is the minimum force of friction required to hold the system of the figure above in equilibrium?  N (b) What coefficient of static friction between the 120-N block and the table ensures equilibrium? (Enter the minimum acceptable coefficient of friction.) (c) If the coefficient of kinetic friction between the 120-N block and the table is 0.217, what hanging weight should replace the 52.0-N weight to allow the system to move at a constant speed once it is set in motion?  N

A mountain climber practices his technique in a mountain climbing school by balancing while suspended by two ropes attached to the ceiling. As shown by the figure, the left rope makes an angle of 60 degrees with the horizontal ceiling and the right rope makes an angle of 30 degrees with the horizontal ceiling. If the right rope has tension T1=322 N, what is the weight of the mountain climber?

A 5.95 kg block is sitting on a level floor.  A person is pulling on a rope attached to the block at a 34.84 degree angle above the horizontal (see figure). The force exerted by the person is 7.33 N.  What is the normal force acting on the block from its contact with the floor?

In the figure, a 499 kg construction bucket is suspended by a cable A that is attached at O to two other cables B and C, making angles 0₁ = 51.0° and 9₂ = 54.0° with the horizontal. Find the tensions in (a) cable A, (b) cable B, and (c) cable C. (Hint: To avoid solving two equations in two unknowns, position the axes as shown in the figure.) B C 0₂

A person whose mass is m = 104.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle a = 33.7° with the horizontal. What is the reading on the scale? reading: kg

There are two forces on the 2.30 kg box in the overhead view of the figure but only one is shown. For F1 = 20.3 N, a = 12.1 m/s?, and e = 36.8°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative angle measured from the +x direction.) (a) Number i+ į Units (b) Number Units (c) Number Units

A 853 N magician (note: this is weight, not mass) is freeing himself from some shackles while suspended above a swimming pool filled with alligators.  Two ropes are suspending the magician.  The left rope makes an angle of 42 above the horizontal and points up and to the left.  The right rope makes an angle of 78 above the horizontal and points up and to the right.  Calculate the tension in the left rope, in N. (Please answer to the fourth decimal place - i.e 10.5432)

Students are performing an experiment with the setup shown above, where a block of mass M sits on a horizontal table. The coefficient of kinetic friction between the block and the table is μk. The block is connected to a hanging object over a pulley. The pulley has negligible mass and friction. The string connecting the two is very light and does not stretch. The students add mass to the hanging object so that its mass is m, where m < M, and the block-hanging object system is released from rest. The hanging object falls for a distance h, at which point it collides with the ground and comes to rest. The block on the table keeps sliding and travels a total distance d before coming to rest. It does not reach the pulley, and d > h. A student creates a data table (see image) for the net force exerted on the block during the speeding up and slowing down portions of the experiment. (d) Does the block of mass M spend more time speeding up or slowing down? Justify your answer.

There are two forces on the 2.26 kg box in the overhead view of the figure but only one is shown. For F₁ = 12.6 N, a = 11.5 m/s², and 0 = 24.4°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative angle measured from the +x direction.) (a) Number i (b) Number i (c) Number i + i Units Units F x Ĵ Units î î

The block shown in the figure is along a frictionless horizontal surface The block's mass is m = 4.70 kg , the magnitude of the applied force is F= 26.5N, and the angle of the applied force from the horizontal is theta = 26.0 degrees. What is the magnitude of the normal force acting on the block.