Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50 N/m, attached to a 50-kg block in an incline (0=30°). With the spring initially at equilibrium position, the block was pushed 0.5 meters up the incline by a 30-N external force applied parallel to the path. The coefficient of kinetic friction is 0.30. d) How much work is done by the block (in Joules) on the spring? e) How much work is done by the applied push on the block? f) How much work is done by friction? L

Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50 N/m, attached to a 50-kg block in an incline (0=30°). With the spring initially at equilibrium position, the block was pushed 0.5 meters up the incline by a 30-N external force applied parallel to the path. The coefficient of kinetic friction is 0.30. d) How much work is done by the block (in Joules) on the spring? e) How much work is done by the applied push on the block? f) How much work is done by friction? L

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

Similar questions

Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50 N/m attached to a 50-kg block in an incline (©=30°). With the spring initially at equilibrium position, the block was pushed 0.3 meters up the incline by a 50-N external force applied parallel to the path. The coefficient of kinetic friction is 0.30. d) How much work is done by the block (in Joules) on the spring? e) How much work is done by the applied push on the block? f) How much work is done by friction?
Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50 N/m, attached to a 50-kg block in an incline (0=30°). With the spring initially at equilibrium position, the block was pulled 0.3 meters down the incline by a 50-N external force applied parallel to the path. If the coefficient of kinetic friction is 0.3, determine the: a) normal force (in Newtons) b) work done by the spring (in Joules) www
In the system shown in the figure, mA = 2 kg and mB = 5 kg.the mass is connected to each other by rope. A 12 N Fforce is applied to body A at an angle of 10 °.There is only friction between body B and the inclined planeand the kinetic coefficient of friction is 0.3. a) Draw the free body diagram of each object. b) Find the acceleration of the system. g = 9.8 m / s ^ 2, sin (37 °) = cos (53 °) = 0.60, cos (37 °) = sin (53 °) = 0.80, sin (10 °) = 0.17,cos (10 °) = 0.98
Consider the following diagram. m1=20 kg and m2= 10 kg. The system is being pulled by an applied force of 200 N. directed 50" above the horizontal. The coefficient of kinetic friction between the block and the surface is u-0.2. 50 m, 20kg Coefficient of friction 4=0.2 10 kg. 309 7) Calculate the acceleration of the system. Your answer 8) Calculate the magnitude of the Tension on the rope. Your answer N 00
Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50 N/m, attached to a 30-kg block in an incline (θ=30°). With the spring initially at equilibrium position, the block was pushed 0.5 meters up the incline by a 50-N external force applied parallel to the path. If the coefficient of kinetic friction is 0.5, determine the: a) normal force (in Newtons) b) work done by the spring (in Joules)
A block of mass M = 539.0 g sits on a horizontal tabletop. The coefficients of static and kinetic friction are 0.549 and 0.391, respectively, at the contact surface between table and block. The block is pushed on with a 13.6 N external force at an angle \theta with the horizontal. a) What angle with respect to the horizontal will lead to the maximum acceleration in horizontal direction of the block for a given pushing force? (Give your answer in degrees and use the unit "deg") b) What is the value of this maximum horizontal acceleration?
3. An object (mass 300 kg) is at rest on a horizontal surface where the coefficient of static friction is (4,). %3D The force F (directed at 0-53.13°)is applied in order to set the object into motion along the surface. If F must have a minimum magnitude of 9500N in order to set the object into motion, what is the coefficient of static friction (µ,) between the object and the horizontal surface? a. 0.72 b. 0.88 c. 0.54 d. 0.66 e. 0.48
kihetic friction), f = µN. f is directed opposite to the relative velocity. Example 3.4 Block and Wedge with Friction A block of mass m rests on a fixed wedge of angle 6. The coefficient of friction is u. (For wooden blocks, u is typically in the range of 0.2 to 0.5.) Find the value of 6 at which the block starts to slide, and the acceleration X when it slides. In the absence of friction, the block would slide down the plane; hence the friction force f points up the plane. With the coordinates shown, we have m.X=W sin 6-f and SHOT ON MI A2 MI DUAL CAMERA mỹ = N-W cos 0 2021/4/2 19:27
1. A horizontal force, F, pushes a block of mass m against a vertical wall. The coefficient of static friction, μs, is given. Find the minimum horizontal force where the block will just begin to slip.
A ring of mass m is attached to the spring and slides over the rod. Unextended length of the spring l0 and the spring coefficient is k. When the collar is at point C, it is released and between the collar and bar Since the coefficient of friction is μk; a)Find the velocity of the ring at points A and B using the Work-Energy method. b)Find the normal forces acting on the collar at points A and B.
A ring of mass m is attached to the spring and slides over the rod. Unextended length of the spring l0 and the spring coefficient is k. When the collar is at point C, it is released and between the collar and bar Since the coefficient of friction is μk; a) Find the velocity of the ring at points A and B using the Work-Energy method. b) Find the normal forces acting on the collar at points A and B.
A 200-kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 34.5° with respect to the horizontal. The coefficient of kinetic friction between the log and the ramp is 0.870, and the log has an acceleration of 0.750 m/s2. Find the tension in the rope.