A 5-kg wooden block sits on top of a fixed incline oriented at an angle 0=30°. The coefficients of friction between the block and the incline are P= 0.60 and Pk = 0.30. The block is being pulled up the incline by a cable tugged at the other end with force P = 60 N as shown. At the instant shown, the block is sliding up the incline and the normal force exerted by the incline on the block is equal to 42.5 N. P m=5kg 5. The reaction force R exerted by the inclined surface on the block, which is the resultant of the frictional and normal forces, as it slides up the incline is closest to 49.5 N S 59.0° 49.5 NS 29.0° 44.3 NS 43.3° 44.3 NS 73.3

A 5-kg wooden block sits on top of a fixed incline oriented at an angle 0=30°. The coefficients of friction between the block and the incline are P= 0.60 and Pk = 0.30. The block is being pulled up the incline by a cable tugged at the other end with force P = 60 N as shown. At the instant shown, the block is sliding up the incline and the normal force exerted by the incline on the block is equal to 42.5 N. P m=5kg 5. The reaction force R exerted by the inclined surface on the block, which is the resultant of the frictional and normal forces, as it slides up the incline is closest to 49.5 N S 59.0° 49.5 NS 29.0° 44.3 NS 43.3° 44.3 NS 73.3

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

a 2 kg golf ball moves along an x axis according to x(t) = 10t^3 - 2.80t^2 + 7.4t +15 , with x in meters and t in seconds . in unit-vector notation , what is the net force acting on the particle at t= 5.20 s?
A woman pushes a 10.0 kg box across a horizontal floor with a constant force of magnitude 40.0 N directed at an angle of -25° with respect to the positive x-axis. The box moves horizontally to the right. At the origin (x=0) the box has an initial speed of 4.00 m/s and the woman pushes it to a location ofx=3.00 m. what is the force of the woman? what is the force of gravity? what is the normal force of the floor?
A 2.60 kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 7.29 N and a vertical force P are then applied to the block (see the figure). The coefficients of friction for the block and surface are us = 0.4 and Pk = 0.25. Determine the magnitude of the frictional force acting on the block if the magnitude of P is (a)6.00 N and (b)8.00 N. (The upward pull is insufficient to move the block vertically.) (a) Number Units (b) Number Units
Mary applies a force of 76 N to push a box with an acceleration of 0.40 m/s2. When she increases the pushing force to 84 N, the box's acceleration changes to 0.62 m/s2. There is a constant friction force present between the floor and the box. (a) What is the mass of the box in kilograms? kg (b) What is the coefficient of kinetic friction between the floor and the box?
A stone has a mass of 8.79 g and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.818. When the tire surface is rotating at 10.9m/s, the stone flies out the tread. The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 2.46 N. Assume that only static friction supplies the centripetal force, and determines the radius r of the tire (in terms of m)
Two crates of fruit are released from the top of a ramp inclined at 30 degrees from the horizontal and 4.5 meter long. The two crates consist of an apple crate of mass 20 kg that is placed in front of a watermelon crate of mass 80 kg. The apple crate has a coefficient of friction of 0.20 while the watermelon crate has a coefficient of friction of 0.15. How long does it take the apple crate to reach the bottom of the incline if it needs to travel a distance of 4.5 meters?
Mary applies a force of 77 N to push a box with an acceleration of 0.55 m/s2. When she increases the pushing force to 85 N, the box's acceleration changes to 0.71 m/s2. There is a constant friction force present between the floor and the box. (a) What the mass of the box in kilograms? kg (b) What is the coefficient of kinetic friction between the floor and the box?
An accident victim with a broken leg is being placed in traction. The patient wears a special boot with a pulley attached to the sole. The foot and boot together have a mass of 4.0 kgkg, and the doctor has decided to hang a m� = 6.6 kgkg mass from the rope. The boot is held suspended by the ropes and does not touch the bed. (Figure 1) Determine the amount of tension in the rope by using Newton’s laws to analyze the hanging mass. Assume that ϕ� = 11 ∘∘ .Hint: If the pulleys are frictionless, which we will assume, the tension in the rope is constant from one end to the other. The net traction force needs to pull straight out on the leg. What is the proper angle θ� for the upper rope? What is the net traction force pulling on the leg?
An object (m = 5.00 kg) is sliding down the incline plane which sits on a table of a height H = 1.50 m as shown in the figure. The angle that the inline makes with the horizontal is 35.0°. %3D The objects slides a distance of 1.00 m down the incline in 3.00 s. The incline is not frictionless. (a\) Draw a labeled and scaled FBD showing all the forces acting on the object while it is on the ramp. (b) Find the magnitude of acceleration of the object down the incline. (c) Find the coefficient of kinetic friction between the object and the incline. (d) What is the work done by the force of friction? (e) When the object gets to the bottom of the plane, it follows a projectile path. How far from the edge of the table (x) does it land?
David throws a 50 kg cart down a ramp with an initial speed of vi = 6 m/s. The ramp is at an angle of 20◦, and the coefficient of kinetic friction between the cart and the ramp is µk = 0.25. Additionally, the coefficient of static friction is µs = 0.55. How much time does it take to reach Ryan who is 10 m away? Assume that the cart slides and doesn’t roll.
A block of mass m = 14kg rests on an inclined plane with a coefficient of static friction of mu_{s} = 0.11 between the block and the plane. The inclined plane is L = 6.8m long and it has a height of h = 3.95 m at its tallest point a. What angle in degrees does the plans make with respect to the horizontal B.what is the magnitude of the normal force, Fn in newtons that acts on the block C. What component of the force of gravity along with the plan fgx in newton? Will the block slide?
A 17 kg block rests on a 32 degree inclined frictionless surface and is attached by a light string to a 34 kg hanging mass where the string passes over a massless frictionless pulley. If g = 9.8 m/s^2 what is the tension in the connecting string?