A block is pulled at constant speed along a rough level surface by a rope that makes an angle of 30° with respect to the horizontal. The applied force along the rope is p. The force of kinetic friction between the block and the surface is 20 N. 30 Which one of the following expressions gives the magnitude of the force P in SI units?

A block is pulled at constant speed along a rough level surface by a rope that makes an angle of 30° with respect to the horizontal. The applied force along the rope is p. The force of kinetic friction between the block and the surface is 20 N. 30 Which one of the following expressions gives the magnitude of the force P in SI units?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter2: Vectors

Section: Chapter Questions

Problem 26P: In a tug-of-war game on one campus, 15 students pull on a rope at both ends in an effort to displace...

See similar textbooks

Similar questions

A force F1, of magnitude 6.00 units acts on an object at the origin in a direction = 30.0 above the positive x-axis (Fig. P3.8). A second force F2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find graphically the magnitude and direction of the resultant force F1 + F2?. Figure P3.8
2.0 kg against a vertical wall by exerting 40 N, on it. The coefficients of static and kinetic friction 3. 10 A person holds a book of mass m = a horizontal force, Fext between the book and wall are p, = 0.6 and Hk = 0.4, respectively. The book is stationary. %3D +y Calculate a numerical value for the force (a vector) that the wall exerts on the book. Put your numerical vector answer in component form.
A 5N horizontal force is applied to the block, pushing toward the right, but the block does not move. If coefficient of static friction is 0.1 and object mass is 20 Kg, what is the force of static friction of the surface on the block. (Take g=10 m/s^2)
If a 3kg box is moving down a ramp with ramp angle 15° and a friction coefficient μk of 0.4, what is the magnitude of the force of friction on the box (in N)?
A box of bananas weighing 40.0 N rests on a horizontal surface.The coefficient of static friction between the box and the surfaceis 0.40, and the coefficient of kinetic friction is 0.20. If the monkey applies a horizontal force of 18.0 N, what is the magnitude of the friction force and what is the box’s acceleration?
A student's head is bent over her physics book. The head weighs P = 25.6 N and is supported by the muscle force Fm exerted by the neck extensor muscles and by the contact force Fc exerted at the atlantooccipital joint. Given that the magnitude of Fm is 60.0 N and is directed 35.0° below the horizontal. PN Find the magnitude of the contact force F. . |N
Timmy is done placing his things in a big box and ready to transfer to his new condo unit. The movers arrived and uses a wooden ramp with an elevation of 24.6° from the horizontal to load his things to the truck. If the box has a mass of 45.7kg and has a value of coefficient static friction is 0.936. How much force is required for the delivery man to overcome the static friction? O 568.16 N O 385.14 N O 381.54 N O No answer O 586.16 N
Three people are pulling a heavy object along the floor with forces A, B and C as shown in the figure. What is the resultant (i.e. suml of the three forces? The forces are given by (all angles are CCW from + x-axis): A = magnitude 20 N, direction 30º. B = magnitude 40 N, direction 140°. C= magnitude 30 N, direction 240º. в А х-ахis
In the first figure here, a sled is held on an inclined plane by a cord pulling directly up the plane. The sled is to be on the verge of moving up the plane. In the second figure, the magnitude F required of the cord's force on the sled is plotted versus the coefficient of static friction Hs between sled and plane: F1 2.1 N, F2 = 4.5 N, and µ2 = 0.534. At what angle 0 (in °) is the plane inclined? %3D %3D F F Number Unit
A book with mass = 2.25 kg rests on the surface of a bar. The coefficient of static friction between the book and the par us=0.71 and the coefficient of kinetic friction is uk=0.44.What would be the expression for Fm the minimum force required to move the book on the surface of the bar and how is this solved numerically for the magnitude of the force Fm in Newtons?
A block is pulled along a rough level surface at constant speed by the force P to the right . FN, the normal force on the block has an upward direction; and f, the force of kinetic friction is opposite the direction of P. What is the magnitude of FN?
A car is being pulled out of the mud by two ropes. Each with a magnitude Force of 2900N. the angle inbetween the ropes, pulling from the front of the car, is 30 degrees. a dashed line bisects the angle (15 degrees on each side). how much force would a single rope need to apply the same effect as the two forces added together? what angle would the single rope make relative to the dashed line?