**Problem Statement:**A 400-N block is dragged along a horizontal surface by an applied force \( \vec{F} \) as shown in the diagram. The coefficient of kinetic friction is \( \mu_k = 0.4 \) and the block moves at constant velocity. The magnitude of \( \vec{F} \) is:A) 100 N B) 150 N C) 200 N D) 290 N E) 400 N **Diagram Explanation:**- The diagram shows a block on a horizontal surface.- An applied force \( \vec{F} \) is acting on the block at an angle.- The force \( \vec{F} \) is decomposed into two components: - The vertical component is \( \frac{3}{5}F \). - The horizontal component is \( \frac{4}{5}F \).**Notes:**- Since the block moves at a constant velocity, the net force on it is zero.- This means the horizontal component of the applied force must balance out the frictional force.

Answered: Image /qna-images/answer/ad125293-3cb8-4c98-a393-8617d21fce29.jpg

Answered: 2) A 400-N block is dragged along a…

2) A 400-N block is dragged along a horizontal surface by an applied force F as shown. The coefficient of kinetic friction is uk = 0.4 and the block moves at constant velocity. The magnitude of F is:

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)...

See similar textbooks

Similar questions

The 498-N force is applied to the 89-kg block, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the block. The force is positive if to the right, negative if to the left. H₂ = 0.66 H = 0.52 Answer: F= i 36° N P = 498 N
2) An object with a mass of 10 kg is initially at rest at the top of a inclined plane that rises at 30° above the horizontal. At the top, the object is initially 8.0 m from the bottom of the incline, as shown in the figure. When the object is released from this position, it eventually stops at a distanced from the bottom of the inclined plane along a horizontal surface, as shown. The coefficient of kinetic friction between the horizontal surface and the object is 0.20 and between the incline and the block is 0.12. Find the distance d. ( Take the air resistance as negligible). 8.0 m 30°
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?
6
A car traveling at 60 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 79 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force (assumed constant) acts on the passenger's upper torso, which has a mass of 42 kg? Number Units
A cougar bites a llama of mass m and drags it across some rough horizontal ground. The cougar applies a horizontal force of magnitude F, and the llama is dragged at a constant velocity. The coefficient of kinetic friction is μk. While the cougar applies the force F, the magnitude of the kinetic friction force, fk , on the llama obeys: a)F > µk m g > fk b)F = fk = µk m gc)F = fk < µk m gd)cannot answer, not enough information givene) F > fk = µk m g
The inclination of a frictionless inclined plane is θ and an object of mass m awaits at its top. What is the magnitude of the normal force exerted by the plane on the object during its motion on the inclined plane after the object is released?a) mg sinθ b) mg tan θ c) mgd) mg cosθe) mg cotθ
A wedge with mass M rests on a frictionless, horizontal tabletop. A block with mass m is placed on the wedge, and a horizontal force F S is applied to the wedge (Fig.). What must the magnitude of F S be if the block is to remain at a constant height above the tabletop?
71 SSM Figure 5-60 shows a box of dirty money (mass m = 3.0 kg) on a frictionless plane inclined at angle 6, = 30°. The box is con- nected via a cord of negligible mass to a box of laundered money (mass m; = 2.0 kg) on a frictionless plane inclined at angle Oz = 60°. The pulley is frictionless and has negligible mass. What is the ten- sion in the cord? Figure 5-60 Problem 71.
A rock rests on a horizontal plane. The plane is slowly tilted so that the angle between the surface and the horizontal increases to 20 degrees, at which point the rock is about to slip. What is the coefficient of static friction between the rock and the surface, to two significant figures? O 0.36 2.2 3.4 9.4 O 13 O
Determine the drag coefficient ca needed for a parachutist of mass m = 68.1 kg to have a velocity of 40 m/s after free-falling for time t = 10 s. Assume the acceleration due to gravity is 9.8 m/s². v(t) = [1 - e-G)] gm Cd
Antman must supply a force of 8.25x10-3N to a small computer chip to lower it at a constant velocity over a distance of 11.5cm down a slope into a waiting circuit board. If the computer chip has a mass of 5.50g and the slope makes an angle of 23.0° with respect to the horizontal. What is the coefficient of kinetic friction between the computer chip and the slope?