Chapter 13, Problem 106P

The weight of the spring held follower AB is 0.367 kg and moves back and forth as its end rolls on the contoured surface of the cam, where r = 0.2 ft and z = (0.1sin20) ft. If the cam is rotating at a constant rate of 6 rad/s, determine the force, in lb, at the end A of the follower where 0 = 45°. In this position, the spring is compressed 0.4 ft. Neglect friction at the bearing C. Round your answer to 3 decimal places. 6 = 6 rad/s 0.2 ftX z = 0.1 sin 20 Z A k = 12 lb/ft с B

The smooth surface of the vertical cam is defined in part by the curve r = (0.2 cos 0+0.3) m. Plac41 Figure ▼ Part A If the forked rod is rotating with a constant angular velocity of A = 4 rad/s, determine the force the cam and the rod exert on the 1.8-kg roller when 0 = 30°. The attached spring has a stiffnesss k= 30 N/m and an unstretched length of 0.1 m. Express your answers in newtons using three significant figures separated by a comma. Neam, Frod = ΑΣΦ Submit Request Answer vec ? 1 of 1 N

Part A The smooth surface of the vertical cam is defined in part by the curve r = (0.2 cos 0+0.3) m. The forked rod is rotating with an angular acceleration of 0 = 2 rad/s as shown in (Figure 1), and when 0 = 45°, the angular velocity is 6 = 6 rad/s. Determine the force the cam and the rod exert on the 1.8-kg roller at this instant. The attached spring has a stiffnesss k = 100 N/m and an unstretched length of 0.1 m. Express your answers in newtons using three significant figures separated by a comma. ? Neam, Frud = N Submit Request Answer Figure 1 of 1 Provide Feedback Next >

2/135 As the hydraulic cylinder rotates around O, the ex- posed length 1 of the piston rod P is controlled by the action of oil pressure in the cylinder. If the cyl- inder rotates at the constant rate 0 = 60 deg/s and 1 is decreasing at the constant rate of 150 mm/s, calculate the magnitudes of the velocity v and ac- celeration a of end B when 1 = 125 mm. Ans. U = 545 mm/s, a = 632 mm/s² 375 mm 0 Problem 2/135 B

Assuming there is no slippage for the belt assembly below, Determine the following: What is the average angular velocity of each pulley if the rope accelerates from 5 m/s to 10 m/s in 10 s? How many revolutions does the pulley turn in that time? R1 = 0.3 m R2 = 0.2 m R3 = 0.1 m

*13=108. The collar, which has a weight of 3 lb, slides along the smooth rod lying in the horizontal plane and having the shape of a parabola r = 4/(1 – cos 0), where 0 is in radians and r is in feet. If the collar's angular rate is constant and equals ò = 4 rad/s, determine the tangential retarding force P needed to cause the motion and the normal force that the collar exerts on the rod at the instant 0 = 90°.

The rate of the rotating arm is 4 rad/s when it is 3 rad/s² and 0 = 180°. Determine the force it must exert on the 0.45 kg smooth cylinder if it is confined to move along the slotted path. Motion occurs in the horizontal plane. Round your answer to 2 decimal places. 6 = 4 rad/s, 0 = 3 rad/s²/ r 0 = 180° r = (²7) m

As in the figure, in an amusement vehicle rotating in the amusement park, the center shaft rotates at a speed of n=9 rpm. Meanwhile, the child is moved with the position equations r = (2 sinθ + 5) m and z = (3 cosθ) m. Find the forces generated in the child in all three axes (r, θ, z). The weight of the child is m = 31 kg. θ=115 degrees at the time the photo was taken.

In the figure, rod AB has a mass of 10 kg, and must slide within the slots as shown. If the spring is unstretched when θ = 0°, determine the angular velocity of the bar when it reaches that angle after being released from θ = 30°.