Suppose you have a stack of 17 identical steel bars (steel bars have a mass of 1.00kg each). You are required to pull out bar number 16 from the stack (counting from the top of the stack down). Assuming that your assistant holds all other bars in place.   If the coefficient of friction between steel and steel is 0.750, how hard do you have to pull (in N)?

Q: In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at…

A:

Q: An initially stationary box of sand is to be pulled across a floor by means of a cable in which the…

A: Given : T = 1020 N μs = 0.360

Q: Why is 5 the correct answer ?

A: Given: Block mass, m=2 kg Applied force, F=5 N Static coefficient, μs=0.7 Kinetic friction…

Q: (a) Calculate the tension (in N) in a vertical strand of spiderweb if a spider of mass 8.00 x 105 kg…

A:

Q: A 50.7 kg box is resting on a horizontal floor. A force of 317.1 N directed at an angle of 34.1°…

A: Given;-  The mass of the box is m = 50.7 kg  A force of 317.1 N directed at an angle of 34.1° below…

Q: An initially stationary box of sand is to be pulled across a floor by means of a cable in which the…

A:

Q: A 2.270 kg block of wood rests on a steel desk. The coefficient of static friction between the block…

A:

Q: Given three 250 Ω resistors, connected them in four different ways. Solve for the net resistance in…

A:

Q: You can hold your 2.5 kg textbook against the wall, preventing it from slipping down, if you press…

A: In the system , there are two forces acting on the textbook vertically, the gravitational force or…

Q: A 12.4 kg block is pulled by a force of 26.8 N across a horizontal table. The coefficient of static…

A:

Q: A) An object weighing 500kg is to be pulled by a man by exerting a force P. Force P is inclined at…

A:

Q: A block of mass 3.00kg is pushed up against a wall by a force P that makes an angle of θ=50.00 with…

A: Explanation Assume that, the block is moving in upward direction to get maximum possible value of P.…

Q: A crate is placed on an inclined board. One end of the board is hinged so that the angle is…

A:

Q: A heavy sled is being pulled by two people, as shown in the figure. The coefficient of static…

A: Introduction: Tension: Tension force is defined as the force that is transmitted through a wire or…

Q: There are two forces on the 1.82 kg box in the overhead view of the figure but only one is shown.…

A: There are two forces on the 1.82 kg box in the overhead view of the figure but only one is shown.…

Q: A heavy sled is being pulled by two people, as shown in the igure. The coefficient of static…

A: Given:

Q: Two vertical ropes support a 2.00 meter 500N sign. The sign is uniform so its weight force acts at…

A: Consider the free-body diagram of the sign as follows.

Q: Two blocks A and B are connected by a horizontal bar whose mass is negligible. The mass of block A…

A:

Q: A 5.0kg crate is tasting on a horizontal plank. The coefficient of static friction is 0.50. You…

A:

Q: Two vertical cables suspend a 354-N, 1.94-m uniform bar at each end. Cable A can support a maximum…

A: In this question we are given that two vertical cables suspend a 354 N 1.94 m uniform bar at each…

Q: A 3.130 kg block of wood rests on a steel desk. The coefficient of static friction between the block…

A:

Q: On her way to visit Grandmother, Red Riding Hood sat down to rest and placed her 1.20-kg basket of…

A: Mass of basket: m = 1.20 kg Force applied by wolf: FW = 6.40 N Angle between wolf force and…

Q: An initially stationary box of sand is to be pulled across a floor by means of a cable in which the…

A:

Q: You are pushing a rubber crate against a concrete floor. The two surfaces have a static coefficient…

A: 1) for rubber crate  Limiting friction fL = usmg = 0.66×25×9.81  fL = 161.86 N  Applied force F = 85…

Q: An object weighing 5.5 kilograms is suspended by two cables attached to its upper corners. The two…

A: Given The mass of the object is m=5.5 kg. The tension in the rope is T=65%×W=0.65 W. Here, W is the…

Q: An initially stationary box of sand is to be pulled across a floor by means of a cable in which the…

A:

Q: The weight of an elevator is 50 kg. If the weight of passengers is 50 kg, determine the tensile…

A:

Q: An initially stationary box of sand is to be pulled across a floor by means of a cable in which the…

A:

Q: One block rests upon a horizontal surface. A second identical block rests upon the first one. The…

A:

Q: Problem 6: In the figure shown, the mass of the crate is 78 kg, 0, = 42°, and 0, = 28° 01 m Part (a)…

A: (a) Draw the free-body diagram for the given system.

Q: A traffic light weighs 234.0 N and is supported by two wires with an angle of 107.3° between them.…

A: Tension in each wire is 197.4 N. Explanation:

Q: An object is being acted upon by three forces and the entire system is static. One force is 13 N…

A: Solution: Given that Fx = 13 N Fy = 63 N the object is in static

Q: Problem 1: A block with a mass of m = 28 kg rests on a frictionless surface and is subject to two…

A:

Q: Your answer is partially correct. An elevator cab that weighs 28.6 kN moves upward. What is the…

A:

Q: A patient with a broken tibia has the lower half of his leg suspended horizontally by a cable…

A: Tension is the force transmitted axially by a string, a cable, a chain, or similar object, or by…

Q: is A heavy sled is being pulled by two people, as shown in the figure. The coefficient of static…

A: Given that, the coefficient of static friction μs=0.579 the coefficient of kinetic friction μk=0.419…

Q: Force T pulls at angle a up from the horizontal on a section of pipe of weight W as shown, but the…

A: Draw the free body diagram.

Q: A steel beam is suspended from two ropes as it is lifted to the top of a building at a constant…

A: Given: θ1=27.1°θ2=25.7° T1=711 N Free Body Diagram:

Q: Ross and Rachel are fighting if they were on a break. Ross is trying to get his stuff weighing 150.…

A:

Q: (a) A flatbed truck moving at 28 m/s carries a steel girder that rests on its wooden floor. The…

A: (a)       Given that,    Initial speed of the truck () = 28 m/s…

Q: A boy has filled his toy box with all his favorite toys and it trying to drag it across the floor.…

A: Given Data: Mass of toy box is m= 35 kg Pulling Force F= 24 N Angle with horizontal Q=30° The free…

Q: Question 3

A: We have  N2=fN1=800+180=980 NBy torque…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!