A sledge having a mass of 400 kg requires a horizontal force of 620 N to keep it moving at a uniform speed along a horizontal surface. Calculate (a) the coefficient of friction and (b) the direction and magnitude of the

A sledge having a mass of 400 kg requires a horizontal force of 620 N to keep it moving at a uniform speed along a horizontal surface. Calculate (a) the coefficient of friction and (b) the direction and magnitude of the

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

See similar textbooks

Related questions

Q: A 5 kN 2 m V6 kN 2 m VS KN 2m 2 m B

Q: Question 7 5. Using WAB = 7.5 rad/s and GAB = 12.2 rad/s² for rod AB, determine the (a) angular…

Q: How can you find the stress components at the given point?

A: In this problem given data ,

Q: A simple pin-connected truss is loaded and supported as shown in the figure. All members of the…

A: Given-Information:- Do = 3 inch Tw = 0.210 inchP = 4 kipsQ = 2 kipsa = 5 ftb = 9 ftc = 7ft…

Q: Calculate the size of a cylindrical riser (Height and diameter equal ) necessary to feed slab…

Q: The support bracket shown is used to transport a cylindrical can from one elevation to another.…

Q: Go -0.3 m-0.2 m+ 0.2 m -0.4 m 0.5 m The hand truck has a mass of 198 kg and a center of mass at G.…

A: In order to solve this issue, we must first compute the net vertical force, the net horizontal…

Q: Given the following system setup, determine the value of h. Q-0.1 m^3/s 0.15 diameter 1m O Air 0.3m…

Q: A two-mass system consists of a piston of mass m₁, connected by two elastic springs, that moves…

A: Given: Here are the given data, k1=k2=1Nmm1=m2=1kgl=1 mg=10 ms2 To find: The natural frequency of…

Q: 5.8 Locate the centroid of the plane area shown. 16 in. + 20 in. r = 38 in. X

Q: A 74 g ball B dropped from a height ho=1.9 m reaches a height h₂= 0.25 m after bouncing twice from…

A: Given data: The initial height of the ball is h0 = 1.9 m. The mass of the ball is m1 = 74 g. The…

Q: Starting with the differential form of the velocity increases with heat addition eases in supersonic…

A: When fluid in Rayleigh flow with subsonic velocity is heated, the Mach number of the fluid increases…

Q: 3 57 4 5 A -3 m 400 N/m 05 PROR 11 -3 m Find reactions at A and B B

Q: Take that w0 = 4.6 kN/m. Replace the loading by an equivalent force. Express your answer to three…

A: First, we need to calculate the equivalent forces acting on the system. The following figure shows…

Q: From the Animated Figure 8.25 compute the length of time required for the average grain diameter to…

A: To find: The time required. Given: The graph is shown below.

Q: Determine the force in member AE of the loaded truss. The force is positive if in tension, negative…

A: Find the force in member AE

Q: Determine the singular equivalent force and distance from end A to it's line of action when Fb is 10…

A: According to the given data We need to find The singular equivalent force and distance from end A

Q: Given: N110, N2 = 20, N3 = 30, N4 = 40, J1 = 1, J2 = 2, J3 = 3, J4 = 4, J5 = 5, D1 = 1, and D2 = 2.…

A: Given: To find: θsT2s

Q: 2) DETERMINE TENSION T. W = 400 16 T W

Q: Part of a two story building is shown in the figure in which a concerte column and a steel column…

A: To find: The displacement at B and C. Given: The compressive force on the first floor is PB=420…

Q: 5.35 Determine by direct integration the centroid of the area shown.

A: From the given data: x = a y = b Next, rearrange the given equations in terms of a and b. From…

Q: How do you measure the flow rate (in Liters/second) of a sink faucet and then calculate the mass…

A: The sink faucet is a kind of opening in the kitchen from where water is draining out. The water is…

Q: Using the image below replace the distributed loading with an equivalent resultant force, and…

A: Given data:- L1 = 9 ft W1 = 70 lb/ft W2 = 420 lb/ft To find:- Replace the distributed loading with…

Q: (a) An infrared gas analyser has a span of 01% of the component being measured. It operates at…

Q: Why cos(60 if I don't see that angle in the figure

A: This question can be solved by labelling angles.

Q: The cantilever shown in the figure consists of two structural-steel channels size 3 in., 5.0 lbf/ft.…

A: Given data: wc = 5.0 lbf/ft for 2 channels Assuming, size, d = 3 in Force, F = 145 lbf L = 53 in w =…

Q: A simple Rankine cycle works between the boiler pressure of 5 MPa and condenser pressure of 5 kPa.…

Q: Determine the reactions at the supports.

A: The given information in the problem is shown in the following attached image:

Q: 3. A shaft 120mm in diameter is 1.6m long and its mass is 102kg. It is used as a beam by simply…

Q: A soft surface cone clutch must handle 1865 In-1b of torque at 1250 rpm. The large diameter of the…

A: Given data: Torque (T) = 1865 in-lb Speed (N) = 1250 rpm Diameter (D) = 13.75 in Included angle (θ)…

Q: Replace the distributed loading with an equivalent resultant force. Specify the location of FR on…

Q: Instructions: Identify the talking components by choosing the most appropriate answer from the…

A: To determine: I allow flow to bypass a flow control valve. What am I? As fluid temperature rises,…

Q: Determine the force in member AB of the truss and state if the member is in tension or compression.…

A: GivenF1=6kNF2=8 kN

Q: Liquid propane (C3H8) enters a combustion chamber at 25°C at a rate of 0.05 kg/min where it is mixed…

Q: What can be determined when looking at the micostructure of this high manganease metal?

A: The microstructure of a high manganese steel provides important information about its properties and…

Q: 14-89. The 10-kg block A is released from rest and slides down the smooth plane. Determine the…

Q: What will be the maximum rotational speed (in rpm) of a 30 cm diameter shaft which will transmit…

Q: Shown to the right is a vented tank filled to the top with ethylene glycol. The tank has a breadth…

A: Given Data: Find: Determine the magnitude of the horizontal and vertical components of force…

Q: A gearset of 60-teeth driven gear and 24-tooth pinion has an 8 mm module and a pressure angle of…

Q: A single strain gage forming an angle B = 18° with a horizontal plane is used to determine the gage…

A: Strain Gauge: A strain gauge is a device used to measure strain on an object. It consists of a thin,…

Q: The materials laboratory that you direct received the following data on the tensile strength in MPa…

A: Given: Sample data of Aluminum Nitride To find: Weibull modulus, m

Q: Required information NOTE: This is a multi-part question. Once an answer is submitted, you will be…

A: Given: Determine the couple M required to hold the system in equilibrium when 0 = 30° and P = 40 lb.

Q: A piston-cylinder device contains 5 kg of steam at 100°C with a quality of 50 percent. This steam…

Q: 2-7 4)Find true magnitude and direction of forces on the wheel and cable members at static…

A: Solution:

Q: Express the moment of the couple acting on the pipe assembly in Cartesian vector form.Take F={25k}N.

A: Given: Take F= {25k}N. To find: The moment of the couple acting on the pipe assembly in Cartesian…

Q: A 350lb load is supported by the rope and pulley arrangement shown. Knowing that a=35 degrees…

Q: Question: Water at 40 °C (?=992.3???3 ??? ?=0.664×10−6 ?2/?) flows at velocity of 2 m/s through a…

A: We need to calculate the Reynolds number to identify the type of flow inside the pipe. Given data:…

Q: 3. A 60cm diameter pipe, conveying water, branches into two pipes of diameter 35cm and 25 cm…

Q: The pin-connected structure consists of a rigid beam ABCD and two supporting bars. Bar (1) is an…

A: cross-sectional area A₁ = 820 mm². cross-sectional area A₂ = 510 mm² For bronze alloy E = 93 GPa…

Q: Answer all the questions briefly 1. Define the term alloy and give an example. 2. Why is aluminum…

A: Alloy:- A alloy substance is made up of homogenous mixture of two or more metals or a metal and a…

Concept explainers

Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

.A sledge having a mass of 400 kg requires a horizontal force of 620 N to
keep it moving at a uniform speed along a horizontal surface. Calculate
(a) the coefficient of friction and (b) the direction and magnitude of the

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Similar questions

The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016, determine the force F required to advance the bar at a constant speed.
The square-threaded screw with a pitch of 10 mm and a mean radius of 18 mm drives a gear that has a mean radius of 75 mm. The static and kinetic coefficients of friction between the gear and the screw are 0.12 and 0.06, respectively. The input torque applied to the screw is C0=10Nm. Assuming constant speed operation, determine the output torque C1 acting on the gear.
A block of mass 14 kg is resting on a table is pulled by a force of 100 N. The coefficient of friction between table and block is .34. Calculate the acceleration of the block.
A 150 lb man can climb up15 ft on a 20 ft ladder before it slips. What must the coefficient of friction be if the ladder is arranged so that its base makes an angle of 50 ̊ with the ground? Assume the ladder to be uniform and weighing 100 lb.
1. A truck is weighing 1.4 KN moves up a slope of 15 °. What is the force generated by the engine if the truck is accelerating at a rate of 3 m/s2? Assume the coefficient of friction is μ =0.1.
A bicycle and rider, travelling at 12 km/hr on a level road, have a mass of 105 kg. A brake is applied to the rear wheel, which is 800 mm in diameter. The pressure force on the brake is 80 N and the coefficient of friction is 0.06. Find the distance covered by the bicycle and the number of turns of its wheel before coming to rest.
A 90 kN locomotive, with a 16 km/hr initial speed, move up an incline. The locomotive has 6 pairs of drive wheels, having a diameter of 600 mm. If the incline angle is 7° and a 750 N-m torque is developed at each driving wheel, calculate the frictional force (in kN), neglecting the rotation energy of the drive wheels.
Find the tension in each cord and the acceleration of the blocks. The coefficient of friction for all contact surfaces is 0.15 and the pulleys are frictionless.
A 340N force parallel to an inclined plane is required to just move a body of mass 50kg up the plane which is inclined at 15 above the horizontal. Calculate the coefficient of friction and the force parallel to the plane required to drag the body down the plane at constant speed.[15 marks]
a. A vehicle with the handbrake drawn must be pushed and moved. The vehicle weight is 1200 kg, and the force required to push the vehicle is 300 kg (G=10 m/s2 can be taken). Determine the value of the coefficient of friction that occurs when the wheels of the car make a sliding movement on the asphalt. As the car is pushed and moved, the speed of the car increases to 3.6 km/h. Find the power spent on friction b. An oil film was formed under the wheels while the same vehicle was pushed with the handbrake drawn, and the vehicle thrust was reduced to 6 kg (G=10 m/s2). Determine the value of the coefficient of friction that occurs between the molecules of the lubricant. The speed of the vehicle increases to 3.6 km/h when the vehicle is moved by pushing on the oil film. Find the power spent on friction
A force of 200 N is exerted on a snack box of 5 kg still on the floor. If the coefficient of friction is 0.3, calculate the static friction.
3. A vehicle, mass 1400 kg, passes a bend at a speed of 54 km/hr. The radius of curvature of the road is 60 m. Determine the minimum coefficient of static friction between the car tires and the road, so that the car can pass through corners safely.