PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Chapter 13, Problem 29P
To determine
The velocity of the crate when time
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The 150-lb car of an amusement partk ride is connected to a rotating telescopic boom. When r = 15 ft, the car is moving on a horizontal circular path with a speed of 30 ft/s. If the boom is shortened at a rate of 3 ft/s, determine the speed of the car when r = 10 ft. Also, find the work done by the axial for F along the boom. Neglect the size of the car and the mass of the boom.
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if v= 6 m/s at s=0. Motion occurs to the right.
F= (5.1 s)N
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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- Given: The 40 kg crate is moving downward at 10 m/s. The motor M pulls on the cable with a force of F, which has a magnitude that varies as shown on the graph. F (N) 450 B 150 t (s) 6. Find: The speed of the crate when t = 6 s.arrow_forward1. The 400-kg mine car is hoisted up the incline using the cable and motor M. For a short time, the force in the cable is F = (3200f²) N, where t is in seconds. If the car has an initial velocity v₁ = 2 m/s at s = 0 and t=0, determine the distance it moves up the plane when t = 2 s. 17 15 v₁ = 2 m/sarrow_forward3arrow_forward
- 8) A block weighing 50-kg is being pulled up the incline as shown below. The coefficient of kinetic friction between the block and the surface of the incline is 0.4. If the block is initially moving up the plane at 2m/s and at this instant (t = 0) the motor develops a tension in the cord of T = (300 + 120vt) Newtons, where t is time in seconds. Determine the velocity of the block at t = 2s. Motor V=2 m/s 30arrow_forwardThe 5.27 kg collar B rests on the frictionless arm AA! The collar is held in place by the rope attached to drum D and rotates about O in a horizontal plane. The linear velocity of the collar B is increasing according to v = 0.2 t2 where v is in m/s and tis in seconds. Find the tension in the rope and the force of the bar on .the collar if 5 s,r= 0.558 m and 0 = 58° A A' Darrow_forwardA catapult is used to throw large projectiles by the ancient civilization. If a catapult swung from rest position and shot a 10-kg projectile at a velocity of 50 meters per second. Determine the force in Newtons exerted by the catapult on the projectile.arrow_forward
- Vị 100 km/h The 2-Mg car has a velocity of v, = 100 km/h when the driver sees an obstacle in front of the car. It takes 0.75 s for him to react and lock the brakes, causing the car to skid. If the car stops when it has travelled a distance of 175 m, determine the coefficient of kinetic friction between the tires and the road.arrow_forwardThe 2,000 kg car is being towed by a motor as shown in the figure below. If the motor exerts a force of F = 10(s + 1) N on the cable, where s is the displacement of the car in meters, determine the speed of the car when s = 10 m, starting from rest. Neglect rolling resistance of the car.arrow_forwardA truck of mass 3 tonnes was moving with a velocity of 140 km/hr. The brakes were applied to bring the truck to 20 km/hr in 10 seconds . Determine the uniform force exerted by the brakes. Also find the velocity it will reach if the same force is applied in the same direction for 600 m and also find the time taken. The uniform force exerted by the brakes in N is The velocity it will reach if the same force is applied in the same direction for 600 m in m/s is The time taken if the same force is applied in the same direction in seconds isarrow_forward
- At the instant shown the 2.3 kg collar is moving to the left on the horizontal shaft with a speed of 5.7 m/s that is increasing at a rate of 4.3 m/s/s in spite of the 11 N friction force between the collar and shaft. Determine the force of the spring in N. Assume s = 4.0 m, h = 2.2. Express the result in N.arrow_forwardCompute the power input of the motor, which operates at an efficiency E = 0.8arrow_forwardThe 400-kg mine car is hoisted up the incline using the cable and motor M. For a short time, the force in the cable is F = (3500 t2) N, where t is in seconds. ( Figure 1) Figure 17 7/8 15 ₁ = 2 m/s 1 of 1 Part A If the car has an initial velocity v₁ = 2m/s at s = 0 and t = 0, determine the distance it moves up the plane when t = 3 s. Express your answer to three significant figures and include the appropriate units. 8 = Value Submit HÅ Provide Feedback Request Answer P Pearson wwwww Units ? Next >arrow_forward
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