A 1500-lbs crate is pulled along the ground with a constant speed for a distance of 25 ft, using a cable that makes an angle of 15° with the horizontal. Show free body diagram and determine the tension in the cable. The coefficient of kinetic friction between the ground and the crate is μk = 0.55.

A 1500-lbs crate is pulled along the ground with a constant speed for a distance of 25 ft, using a cable that makes an angle of 15° with the horizontal. Show free body diagram and determine the tension in the cable. The coefficient of kinetic friction between the ground and the crate is μk = 0.55.

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 7.28P: The man pushes the 120-lb homogeneous crate with the horizontal force P. Determine the largest...

See similar textbooks

Similar questions

The 600-lb cable spool is placed on a frictionless spindle that has been driven into the ground. If the force required to start the spool rotating is F = 160 lb, determine the coefficient of friction between the ground and the spool. Neglect the diameter of the spindle compared to the diameter of the spool.
The man pushes the 120-lb homogeneous crate with the horizontal force P. Determine the largest distance h for which the crate will slide without tipping.
The leather rein used to fasten the horse to the hitching rail weighs 3.5 oz per foot. The coefficient of static friction between the rail and the rein is 0.6. If a 34-lb force acting on the bridle is sufficient to restrain the horse, determine the smallest safe length L for the free end of the rein.
The 60-lb plank rests on a frictionless roller at A, and the 20-lb triangular support BD. Both bodies are homogenous. The coefficients of static friction are 0.4 at B and 0.3 at D. Determine the largest force P that can be applied to the plank without initiating motion.
The 200-lb man walks up the inclined plank of negligible weight. The coefficients of static friction at A and B are 0.3 and 0.2, respectively. Determine the distance x at which the plank would begin to slide.
The conveyor belt is moving downward at 5 m/s. If the coefficient of static friction between the conveyor and the 12-kg package B is uk = 0.71, determine the shortest time the belt can stop so that the package does not slide on the belt.
The coefficient of static friction between wedgesB and C is μs = 0.6 and between the surfaces ofcontact B and A and C and D, μs = 0.4. If P = 50N,determine the smallest allowable compression ofthe spring without causing wedge C to move tothe left. Neglect the mass of the wedges.
Block B is on top of an inclined plane and is being supported by Rod AB, which is attached to Block A. The weight of Block A is 40 KN, and the weight of Block B is 80 KN. Force F prevents the block from sliding. Determine the Normal Force N of the surface that supports Block A. Neglect all friction.
The driver attempts to tow the crate using a rope that has a tensile strength of 1 kN. If the crate isoriginally at rest and has a weight of 1,3 kN, determine the greatest acceleration (m/s2) it can have if the coefficient of static friction between the crate and the road is μs=0.4, and the coefficient of kinetic friction is μk=0.3, g=10 m/s2
The coefficient of static and kinetic friction between the 100-kg block and the inclined plane are 0.30 and 0.20 respectively. Determine (a) the friction forced F acting on the block when P is applied with a magnitude of 200 N to the block at rest (b) the force P required to impend motion up the incline.
The coefficient of static friction between the 50-kg crate and the ramp is μs = 0.35. The unstretched length of the spring is 800 mm, and the spring constant is k = 660 N/m. Determine the following: 1 The normal force acting on the crate is Blank 1 N. 2 The friction force acting on the crate is Blank 2 N. 3 The minimum value of x at which the crate can remain stationary on the ramp is Blank 3 mm.
Two blocks A and B have a weight of 10 lb and 6 lb, respectively. They rest on the inclined plane whose coefficients of static friction are A=0.15 and B 0.25 respectively. Determine the angle of inclination X for which both blocks begin to slide. Also find the required elongation or compression in the spring connecting them for this to occur. The spring has a stiffness of k 2 lb/ft.