Engineering Mechanics: Statics & Dynamics (14th Edition)
14th Edition
ISBN: 9780133915426
Author: Russell C. Hibbeler
Publisher: PEARSON
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Chapter 14.4, Problem 50P
Determine the power output of the draw-works motor M necessary to lift the 600-lb drill pipe upward with a constant speed of 4 ft/s. The cable is tied to the top of the oil rig, wraps around the lower pulley, then around the top pulley, and then to the motor.
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Chapter 14 Solutions
Engineering Mechanics: Statics & Dynamics (14th Edition)
Ch. 14.3 - Determine the work of the force when it displaces...Ch. 14.3 - Determine the kinetic energy of the 10-kg block.Ch. 14.3 - Prob. 1FPCh. 14.3 - If the motor exerts a constant force of 300 N on...Ch. 14.3 - If the motor exerts a force of F = (600 + 2s2) N...Ch. 14.3 - The 1.8-Mg dragster is traveling at 125 m/s when...Ch. 14.3 - When s = 0.5 m, the spring is unstretched and the...Ch. 14.3 - The 5-lb collar is pulled by a cord that passes...Ch. 14.3 - The 20-kg crate is subjected to a force having a...Ch. 14.3 - Prob. 2P
Ch. 14.3 - The crate, which has a mass of 100 kg, is...Ch. 14.3 - The 100-kg crate is subjected to the forces shown....Ch. 14.3 - Determine the required height h of the roller...Ch. 14.3 - When the driver applies the brakes of a light...Ch. 14.3 - Prob. 7PCh. 14.3 - Prob. 8PCh. 14.3 - The air spring A is used to protect the support B...Ch. 14.3 - The force F, acting in a constant direction on the...Ch. 14.3 - The force of F= 50 N is applied to the cord when s...Ch. 14.3 - Design considerations for the bumper B on the 5-Mg...Ch. 14.3 - The 2-lb brick slides down a smooth roof, such...Ch. 14.3 - Block A has a weight of 60 lb and block B has a...Ch. 14.3 - The two blocks A and B have weights WA = 60 lb and...Ch. 14.3 - A small box of mass m is given a speed of v=14gr...Ch. 14.3 - Prob. 17PCh. 14.3 - Prob. 18PCh. 14.3 - If the cord is subjected to a constant force of F=...Ch. 14.3 - The crash cushion for a highway barrier consists...Ch. 14.3 - Prob. 21PCh. 14.3 - The 25-lb block has an initial speed of v0 = 10...Ch. 14.3 - The 8-Kg block is moving with an initial speed of...Ch. 14.3 - At a given instant the 10-lb block A is moving...Ch. 14.3 - Prob. 25PCh. 14.3 - The catapulting mechanism is used to propel the...Ch. 14.3 - Prob. 27PCh. 14.3 - The 1 0-lb box falls off the conveyor belt at...Ch. 14.3 - Prob. 29PCh. 14.3 - The 30-lb box A is released from rest and slides...Ch. 14.3 - Prob. 31PCh. 14.3 - The block has a mass of 0.8 kg and moves within...Ch. 14.3 - The 10-lb block is pressed against the spring so...Ch. 14.3 - The spring bumper is used to arrest the motion of...Ch. 14.3 - When the 150-lb skier is at point A he has a speed...Ch. 14.3 - The spring has a stiffness k = 50 lb/ ft and an...Ch. 14.3 - Prob. 37PCh. 14.3 - If the 60-kg skier passes point A with a speed of...Ch. 14.3 - Prob. 39PCh. 14.3 - Prob. 40PCh. 14.3 - Prob. 41PCh. 14.4 - If the contact surface between the 20-kg block and...Ch. 14.4 - Prob. 8FPCh. 14.4 - Prob. 9FPCh. 14.4 - Prob. 10FPCh. 14.4 - Prob. 11FPCh. 14.4 - Prob. 12FPCh. 14.4 - The jeep has a weight of 2500 lb and an engine...Ch. 14.4 - Determine the power Input for a motor necessary to...Ch. 14.4 - An automobile having a mass of 2 Mg travels up a 7...Ch. 14.4 - Prob. 45PCh. 14.4 - To dramatize the loss of energy in an automobile,...Ch. 14.4 - Escalator steps move with a constant speed of 0.6...Ch. 14.4 - Prob. 48PCh. 14.4 - Prob. 49PCh. 14.4 - Determine the power output of the draw-works motor...Ch. 14.4 - The 1000-lb elevator is hoisted by the pulley...Ch. 14.4 - The 50-lb crate is given a speed of 10ft/s in t =...Ch. 14.4 - The sports car has a mass of 2.3 Mg, and while it...Ch. 14.4 - Prob. 54PCh. 14.4 - Prob. 55PCh. 14.4 - The 10-lb collar starts from rest at A and is...Ch. 14.4 - Prob. 57PCh. 14.4 - The 50-lb block rests on the rough surface for...Ch. 14.4 - The escalator steps move with a constant speed of...Ch. 14.4 - If the escalator in Prob.14-46 is not moving,...Ch. 14.4 - Prob. 61PCh. 14.4 - Prob. 62PCh. 14.4 - Prob. 63PCh. 14.4 - Prob. 64PCh. 14.5 - The block has a mass of 150 kg and rests on a...Ch. 14.5 - Prob. 3PPCh. 14.5 - Prob. 4PPCh. 14.5 - The 2-kg pendulum bob is released from rest when...Ch. 14.5 - Prob. 14FPCh. 14.5 - Prob. 15FPCh. 14.5 - Prob. 16FPCh. 14.5 - The 75-lb block is released from rest 5 ft above...Ch. 14.5 - Prob. 18FPCh. 14.5 - The girl has a mass of 40 kg and center of mass at...Ch. 14.5 - The 30-lb block A is placed on top of two nested...Ch. 14.5 - The 5-kg collar has a velocity of 5 m/s to the...Ch. 14.5 - The 5-kg collar has a velocity of 5 m/s to the...Ch. 14.5 - The ball has a weight of 15 lb and is fixed to a...Ch. 14.5 - Prob. 71PCh. 14.5 - The roller coaster car has a mass of 700 kg,...Ch. 14.5 - The roller coaster car has a mass of 700 kg,...Ch. 14.5 - The assembly consists of two blocks A and B which...Ch. 14.5 - Prob. 75PCh. 14.5 - Prob. 76PCh. 14.5 - The roller coaster car having a mass m is released...Ch. 14.5 - The spring has a stiffness k = 200 N/m and an...Ch. 14.5 - Prob. 79PCh. 14.5 - Prob. 80PCh. 14.5 - When s = 0, the spring on the firing mechanism is...Ch. 14.5 - If the mass of the earth is Me, show that the...Ch. 14.5 - A rocket of mass m is fired vertically from the...Ch. 14.5 - The 4-kg smooth collar has a speed of 3 m/s when...Ch. 14.5 - Prob. 85PCh. 14.5 - The skier starts from rest at A and travels down...Ch. 14.5 - Prob. 87PCh. 14.5 - Prob. 88PCh. 14.5 - When the 6-kg box reaches point A it has a speed...Ch. 14.5 - Prob. 90PCh. 14.5 - Prob. 91PCh. 14.5 - The roller coaster car has a speed of 15 ft/s when...Ch. 14.5 - The 10-kg sphere C is released from rest when =...Ch. 14.5 - Prob. 94PCh. 14.5 - The cylinder has a mass of 20 kg and is released...Ch. 14.5 - Prob. 96PCh. 14.5 - A pan of negligible mass is attached to two...Ch. 14.5 - Prob. 1CPCh. 14.5 - Prob. 1RPCh. 14.5 - The small 2-lb collar starting from rest at A...Ch. 14.5 - Prob. 3RPCh. 14.5 - Prob. 4RPCh. 14.5 - Prob. 5RPCh. 14.5 - Prob. 6RPCh. 14.5 - Prob. 7RPCh. 14.5 - Prob. 8RP
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