For the next three items: A 200 kg plank is projecting a distance L = 5.0 m from a wall which is held steadily by a string that is connected to it at an angle 0 = 30° from the horizontal. The plank is actually fasted to the wall where an unknown force is exerted on the plank by the wall. If a 60 kg mass is placed on the plank at a distance d = 1.0 m, find the tension force on the string. 0 d L-

For the next three items: A 200 kg plank is projecting a distance L = 5.0 m from a wall which is held steadily by a string that is connected to it at an angle 0 = 30° from the horizontal. The plank is actually fasted to the wall where an unknown force is exerted on the plank by the wall. If a 60 kg mass is placed on the plank at a distance d = 1.0 m, find the tension force on the string. 0 d L-

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The figure below shows a box with a mass of m = 3.50 kg on a surface inclined at an angle of 35.0°. The coefficient of static friction between the box and the surface is 0.250. Find the minimum magnitude of the force F (in N), applied to the box in a direction perpendicular to the surface, that will prevent the box from sliding down the surface.
F(t) Force_Crate Known values: Mass of Block 68 kg TT Hs μk 0 0.63 0.53 26° Problem Statement: A crate is initially at rest on a sloped surface, when a force is applied: F(t) where t is in seconds. Answers: When t=44.47 seconds, the crate has not yet started moving. Find the magnitude of the friction force at that time: 317.771 N The direction of the friction force at that time is: down the slope Find the time required for the crate to start moving: Find the crate's speed when t=174.9 s: 9.485 m/s Be sure to include units with your answers. 169.756 S 240+0.2 N,
help solve three part question please. A) A 139 kg box is hanging from a string. Find the tension in the string. B) A 160 kg box is hanging from two strings. String #1 pulls up and left, making an angle of 35o with the horizontal on the left, and string #2 pulls up and to the right, making an angle of 40o with the horizontal on the right. FInd the tension in string #2 (on the right side) C) A box is hanging from two strings. String #1 pulls up and left, making an angle of 45o with the horizontal on the left, and string #2 pulls up and to the right with a force of 40 N, making an angle of 75o with the horizontal on the right. FInd the mass of the box.
The block shown in the figure is sliding along a frictionless horizontal surface The block's mass is m = 4.80 kg,the magnitude of the applied force is F = 26.5 N, and the angle of the applied force F from the horizontal is θ = 28.0°. Determine the magnitude n of the normal force acting on the block.
Two blocks are positioned on surfaces, each inclined at the same angle of 44.0 degrees with respect to the horizontal. The blocks are connected by a rope which rests on a frictionless pulley at the top of the inclines as shown, so the blocks can slide together. The mass of the black block is 6.84 kg, and the coefficient of kinetic friction for both blocks and inclines is 0.250. Assume static friction has been overcome and that everything can slide. What is must be the mass of the white block if both blocks are to slide to the LEFT at an acceleration of 1.5 m/s^2?
A constant force Fa pushes a 22.5-kg box across a rough horizontal surface. The magnitude of Fa is 185 N and the force is inclined at an angle of θ = 30.0° below the horizontal. The coefficient of kinetic friction between the box and the surface is μk = 0.500. What is the magnitude of the box's acceleration?
A 4 kg block is sliding down a vertical wall while being pushed by an external force as shown in the figure. What magnitude of the external force (in N) would be required for the block to move down the wall at constant speed if the coefficient of kinetic friction between the wall and the block is u = 0.20? 4 kg 六F 300 36.98
A loaded penguin sled weighing 80 N rests on a plane inclined at angle 0= 20° to the horizontal (see the figure). Between the sled and the plane, the coefficient of static friction is 0.25, and the coefficient of kinetic friction is 0.15. A) What is the least magnitude of the force F, parallel to the plane, that will prevent the sled from slipping down the plane ? B) What is the minimum magnitude F that will start the sled moving up the plane ? C) What value of F is required to move the sled up the plane at constant velocity?
Two blocks with masses M1 and M2 are connected by a massless string that passes over a massless pulley as shown. = 42.5° M1 has a mass of 2.25 kg and is on an incline of 01 :0.205. M2 has a mass with coefficient of kinetic friction u = 34.5° with coefficient H2 M2 of 7.35 kg and is on an incline of 02 M1 of kinetic friction µ2 = 0.105. The two-block system is in motion with the block of mass M2 sliding down the ramp. Find the magnitude az of the acceleration of M2 down the incline. Figure is not to scale. m/s?
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A block is pressed against a vertical wall by a force F, as the drawing shows. F This force can either push the block upward at a constant velocity or allow it to slide downward at a constant velocity. The magnitude of the force is different in the two cases, while the directional angle e is the same. Kinetic friction exists between the block and the wall, and the coefficient of kinetic friction is 0.300. The weight of the block is 57.0 N, and the directional angle for the force F is 0 = 35.0°. Determine the magnitude of when the block slides (a) up the wall and (b) down the wall. (a) P= i (b) P= i