PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Chapter 13, Problem 35P
To determine
The required shortest time for the truck to reach a speed
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The coefficient of static friction between the 200-kg crate and the flat bed of the truck is 0.3. Determine the shortest time for the truck to reach a speed of 60 km/h, starting from rest with constant acceleration, so that the crate does not slip.
The coefficient of static friction between the 184-kg crate and the flat bed of the truck is μk = 0.37. Determine the shortest time for the truck to reach a speed of 74 km/h, starting from rest with constant acceleration, so that the crate does not slip. Answer is minutes.
The crate has a mass of 80 kg and is being towed by
a chain which is always directed at 20° from the horizontal
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13
Chapter 13 Solutions
PEARSON ETEXT ENGINEERING MECH & STATS
Ch. 13 - Prob. 1FPCh. 13 - If motor M exerts a force of F = (10t2 + 100) N on...Ch. 13 - A spring of stiffness k = 500 N/m is mounted...Ch. 13 - Prob. 4FPCh. 13 - Block B rests upon a smooth surface. If the...Ch. 13 - The 6-lb particle is subjected to the action of...Ch. 13 - If blocks A and B of mass 10 kg and 6 kg...Ch. 13 - Determine the time needed to pull the cord at B...Ch. 13 - Prob. 12PCh. 13 - Block A has a weight of 8 lb and block B has a...
Ch. 13 - The 2-Mg truck is traveling at 15 m/s when the...Ch. 13 - The motor lifts the 50-kg crate with an...Ch. 13 - Prob. 18PCh. 13 - Prob. 19PCh. 13 - The 50-kg block A is released from rest. Determine...Ch. 13 - Prob. 28PCh. 13 - Prob. 29PCh. 13 - Prob. 31PCh. 13 - The tractor is used to lift the 150-kg load B with...Ch. 13 - Prob. 35PCh. 13 - Prob. 39PCh. 13 - The 400-lb cylinder at A is hoisted using the...Ch. 13 - Prob. 43PCh. 13 - Prob. 46PCh. 13 - Prob. 47PCh. 13 - Prob. 48PCh. 13 - Prob. 51PCh. 13 - The block rests at a distance of 2 m from the...Ch. 13 - Determine the maximum speed that the jeep can...Ch. 13 - A pilot weighs 150 lb and is traveling at a...Ch. 13 - The sports car is traveling along a 30 banked road...Ch. 13 - If the 10-kg ball has a velocity of 3m/ s when it...Ch. 13 - Prob. 12FPCh. 13 - Prob. 53PCh. 13 - The 2-kg block B and 15-kg cylinder A are...Ch. 13 - Determine the maximum constant speed at which the...Ch. 13 - Cartons having a mass of 5 kg are required to move...Ch. 13 - The 2-kg spool S fits loosely on the inclined rod...Ch. 13 - Prob. 59PCh. 13 - Prob. 60PCh. 13 - At the instant B = 60, the boys center of mass G...Ch. 13 - Prob. 62PCh. 13 - Prob. 66PCh. 13 - The 150-lb man lies against the cushion for which...Ch. 13 - The 150-lb man lies against the cushion for which...Ch. 13 - Prob. 76PCh. 13 - Prob. 80PCh. 13 - Prob. 81PCh. 13 - Determine the constant angular velocity of the...Ch. 13 - The 0.2-kg ball is blown through the smooth...Ch. 13 - The 2-Mg car is traveling along the curved road...Ch. 13 - The 0.2-kg pin P is constrained to move in the...Ch. 13 - Determine the magnitude of the resultant force...Ch. 13 - The path of motion of a 5-lb particle in the...Ch. 13 - The boy of mass 40 kg is sliding down the spiral...Ch. 13 - Using a forked rod, a 0.5-kg smooth peg P is...Ch. 13 - The collar has a mass of 2 kg and travels along...Ch. 13 - The forked rod is used to move the smooth 2-lb...Ch. 13 - Prob. 109PCh. 13 - Prob. 110PCh. 13 - Prob. 113PCh. 13 - A communications satellite is in a circular orbit...Ch. 13 - Prob. 115PCh. 13 - Prob. 117PCh. 13 - Prob. 118PCh. 13 - Prob. 119PCh. 13 - The rocket is in free flight along an elliptical...Ch. 13 - Prob. 123PCh. 13 - Prob. 124PCh. 13 - Prob. 129PCh. 13 - Prob. 130PCh. 13 - Prob. 131PCh. 13 - The rocket is traveling around the earth in free...Ch. 13 - Prob. 1RPCh. 13 - Prob. 2RPCh. 13 - Block B rests on a smooth surface. If the...Ch. 13 - Prob. 4RPCh. 13 - Prob. 5RPCh. 13 - The bottle rests at a distance of 3ft from the...Ch. 13 - Prob. 7RP
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- 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.arrow_forwardThe coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a) Determine the force P required to pull the roller at a constant speed. (b) What force P would be needed to push the roller at a constant speed?arrow_forwardThe conveyor belt is moving downward at 5 m/s. If the coefficient of static friction between the conveyor and the 15-kg package Bis * mu_{x} = 0.62 , determine the shortest time the belt can stop so that the package does not slide on the beltarrow_forward
- The 5-lb packages ride on the surface of the conveyor belt as shown in (Figure 1). The coefficient of static friction between the belt and a package is 0.45. Figure 0. 6 in. 6 If the belt starts from rest and its speed increases to 2 ft/s in 2 s, determine the maximum angle so that none of the packages slip on the inclined surface AB of the belt. Express your answer in degrees to three significant figures. 0 = Submit Part B Avec b = Request Answer At what angle do the packages first begin to slip off the surface of the belt after the belt is moving at its constant speed of 2 ft/s? Neglect the size of the packages. Express your answer in degrees to three significant figures. IVE| ΑΣΦ | 41 ? vec ? Oarrow_forward2. The car, having a mass of 1000 kg, is traveling horizontally along a 20° banked track which is circular and has a radius of curvature of p = 100 m. If the coefficient of static friction between the tires and the road is us = 0.3, determine the minimum and maximum constant speed at which the car can travel without sliding down and up the slope. Neglect the size of the car. e= 20°arrow_forwardF 15° 0.6 m 1 m The crate has a mass of 58 kg and rests on the inclined platform of the truck. Determine the minimum acceleration that will cause the crate to tip over or slide relative to the forklift. What is the magnitude of this acceleration? The coefficient of static friction between the packaging and the truck is µs= 0.7.arrow_forward
- The 2-kg spool S fits loosely on the inclined rod for which the coefficient of static friction is μ = 0.28. (a) If the spool is located 0.25 m from A, determine the maximum constant speed the spool can have so that it does not slip up the rod. Express your answer to three significant figures and include the appropriate units.arrow_forwardQ20. The 74-kg man pushes on the 134-kg crate with a horizontal force F. If the coefficient of kinetic friction between the crate and the surface is k = 0.12, and the coefficient of static friction between the man's shoes and the surface is με = 0.85, what is the greatest acceleration (in m/s²) the man can give the crate? Hint, this is when the man himself is on the verge of slipping. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point. Take g = 9.81 m/s². Answer: ▬▬▬▬▬▬▬▬▬▬arrow_forward1. If the 50-kg crate starts from rest and achieves a velocity of v = 4 m/s when it travels a distance of 5 m to the right, determine the magnitude of the force P acting on the crate. The coefficient of static friction between the crate and the ground is u. = 0.3 30arrow_forward
- Assume that a driver (car modeled as a point mass) is negotiating a circular turn with a radius of 160 ft. The car and driver have a mass of 3800 lb and the coefficient of friction between the car and road is µ1 = 0.85. What is the maximum constant speed for which the car can travel at the given radius? r= 160 ftarrow_forward1. The 40-kg crate is pulled by the constant force P. If the crate starts from rest and achieves a speed of 10 m/s in 9 s, determine the magnitude of P. The coefficient of kinetic friction between the crate and the ground is 0.15. 30°arrow_forwardI need answer within 20 minutes please please with my best wishesarrow_forward
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