EP ENGR.MECH.-MOD.MASTERING ACCESS
15th Edition
ISBN: 9780134867267
Author: HIBBELER
Publisher: PEARSON CO
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Chapter 19, Problem 58P
To determine
The angle
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The T-shaped body of total mass m = 6.5 kg is constructed of uniform rod. If it is released from rest while in the position shown, determine the vertical force reaction at O as it passes the vertical position (124° after release). The distance b is 1.04 m.
Determine the steady-state angle a if the constant force P = 200 N is applied to the cart of mass M = 19 kg. The cart travels on the
slope of angle e = 18°. The pendulum bob has mass m = 4 kg and the rigid bar of length L = 1.9 m has negligible mass. Ignore all friction.
M
L
Answer: a =
i
Determine the steady-state angle a if the
constant force P = 170 N is applied to the cart
of mass M = 43 kg. The cart travels on the slope
of angle 0 = 17°. The pendulum bob has mass m
= 9 kg and the rigid bar of length L = 1.1 m has
negligible mass. Ignore all friction.
M
L
m
Answer: a =
i
Chapter 19 Solutions
EP ENGR.MECH.-MOD.MASTERING ACCESS
Ch. 19 - The 60-kg wheel has a radius of gyration about its...Ch. 19 - Prob. 2FPCh. 19 - Prob. 3FPCh. 19 - Gears A and B of mass 10 kg and 50 kg have radii...Ch. 19 - The 50-kg spool is subjected to a horizontal force...Ch. 19 - Prob. 6FPCh. 19 - The rigid body (slab) has a mass m and rotates...Ch. 19 - Prob. 2PCh. 19 - Show that if a slab is rotating about a fixed axis...Ch. 19 - Prob. 21P
Ch. 19 - The two gears A and B have weights and radii of...Ch. 19 - The 30-kg gear is subjected to a force of P =...Ch. 19 - Prob. 27PCh. 19 - The turntable T of a record player has a mass of...Ch. 19 - The 10-g bullet having a velocity of 800 m/s is...Ch. 19 - Prob. 31PCh. 19 - Disk A has a weight of 20 lb. An inextensible...Ch. 19 - The 12-kg rod AB is pinned to the 40-kg disk. If...Ch. 19 - A thin rod of mass m has an angular velocity o...Ch. 19 - Prob. 41PCh. 19 - Prob. 42PCh. 19 - Prob. 44PCh. 19 - The 10-lb block is sliding on the smooth surface...Ch. 19 - Prob. 46PCh. 19 - The pendulum consists of a 15-kg solid ball and...Ch. 19 - Prob. 48PCh. 19 - The 20-kg disk strikes the step Without...Ch. 19 - The solid ball of mass m is dropped with a...Ch. 19 - Prob. 54PCh. 19 - Prob. 55PCh. 19 - Prob. 56PCh. 19 - Prob. 58PCh. 19 - The cable is subjected to a force of P = (10t2)...Ch. 19 - Prob. 2RPCh. 19 - The tire has a mass of 9 kg and a rad1us of...Ch. 19 - Prob. 4RPCh. 19 - The spool has a weight of 30 lb and a radius of...Ch. 19 - Prob. 6RPCh. 19 - Prob. 7RPCh. 19 - Prob. 8RP
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- A force of P = 500 N is applied to the 80-kg cart. Determine the reactions at both the wheels at A and both the wheels at B. Also, what is the acceleration of the cart? The mass center of the cart is at G.arrow_forwardIf the hydraulic cylinder BE exerts a vertical force of F = 1.5 kNon the platform, determine the force developed in links AB and CD at the instant Ѳ= 90°. The platform is at rest when Ѳ= 45°. Neglect the mass of the links and the platform. The 200-kg crate does not slip on the platform.arrow_forwardF13–16. The 0.2-kg pin P is constrained to move in the smooth curved slot, which is defined by the lemniscate r = (0.6 cos 20) m. Its motion is controlled by the rotation of the slotted arm OA, which has a constant clockwise angular velocity of ở = -3 rad/s. Determine the force arm OA exerts on the pin P when e = 0°. Motion is in the vertical plane. 1= (0.6 cos 20) marrow_forward
- The smooth surface of the vertical cam is defined in part by the curve r =(0.2 cos θ + 0.3) m. The forked rod is rotating with an angular acceleration of 2rad/s^2, and when θ = 45° the angular velocity is 6 rad/s. Determine the force the camand the rod exert on the 2-kg roller at this instant. The attached spring has a stiffnessk = 100 N/m and an unstretched length of 0.1 m.arrow_forwardThe 14-kg bar AB is pivoted at A and is subjected to a moment M = 18 N.m. If the bar is released from rest when the spring is at its natural length at an angle 0 = 30°, determine the angular velocity of the bar at the instant 0 = 60°. Assume that the spring, thanks to the presence of the roller at C, always remains horizontal. k = 40 N/m M B 0.75 marrow_forwardThe uniform slender bar has a mass of 7 kg. If the spring is unstretched when Ⓒ = 0º, determine the magnitude of the reaction force exerted on the bar by pin A when = 45°, if at this instant w = 7 rad/s. The spring stiffness is k = 150 N/m. A 800 mm k = 150 N/m Barrow_forward
- The 0.2-Kg pin P is constrained to move in the smooth curved slot. Which is defined by the lemniscate r = (0.6 cos20) m. Its motion is controlled by the rotation of the slotted arm OA, which has a constant clockwise angular velocity of 0 = -3 rad/s. Determine (a)-the force arm OA exerts on the pin P when 8 = 0°,note that the motion is in the vertical plane, (b) the acceleration in the r and0 direction. 1= (0.6 cos 26) m Aarrow_forwardThe system is made up of the 1-m, 6.5-kg uniform rod AB and the two uniform disks (each of 0.19 m radius and 1.5 kg mass). If the system is released from rest when = 80°, when rod AB has just become horizontal, determine the coefficient C in the expression Cw² which is the kinetic energy of rod AB at this instant. Assume the disks roll without slipping. Your answer must include 2 places after the decimal point. Please pay attention: the numbers may change since they are randomized. AB' Take g= 9.81 m/s². A-L B m Your Answer: Answerarrow_forwardDetermine the steady-state angle a if the constant force P = 170 N is applied to the cart of mass M = 27 kg. The cart travels on the slope of angle 0 = 22°. The pendulum bob has mass m = 8 kg and the rigid bar of length L = 1.5 m has negligible mass. Ignore all friction. m P Answer: a = i α 2-1 M Ө Oarrow_forward
- The 50-1b block rests on the smooth surface. A force F = (40+s) Ib, which s isin ft, acts on the block in the direction shown. If the spring is originally unstretched (s = 0) and the block is at rest, determine the power developed by the force the instant theblock has moved s = 1.5 ft.F30°k = 20 lb/ftarrow_forwardThe 150-lb man lies against the cushion for which the coefficient of static friction is Hiy = 0.5. If he rotates about the z axis with a constant speed v = 30 ft/s, determine the smallest angle 0 of the cushion at which he will begin to slip off. -8 ftarrow_forwardThe flat circular disk rotates about a vertical axis through O with a slowly increasing angular velocity w. Prior to rotation, each of the 0.52-kg sliding blocks has the position x = 28 mm with no force in its attached spring. Each spring has a stiffness of 430 N/m. Determine the value of x for each spring for a steady speed of 279 rev/min. Also calculate the normal force N exerted by the side of the slot on the block. The force N is positive if it pushes from the side labeled A. Neglect any friction between the blocks and the slots, and neglect the mass of the springs. (Hint: Sum forces along and normal to the slot.) Answers: X = wwwwwwww N = i i -74-74- mm mm mm Narrow_forward
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