3.39 Find the resultant of the two forces and the couple shown, given that P = 20 N, P2 = 30 N, and C = 1000 N · mm.

PROBLEM 5 Determine the spring constant, k, in the figure such that the slender rod AB just reaches the vertical down position when it is released from rest in the horizontal position shown. The spring is stretched 25 mm in the position shown. The mass of the bar is 3.6kg. Show detailed solution. 125 mun

A non-uniform beam extends horizontally from x = 0 m to x = 6.5 m.  The linear mass density of the beam, as a function of x, is given by  λ(x) = 17  -  3 (x / 6.5)   (kg/m). Calculate the gravitational torque on the beam about its left end, in N m.  Use g = 10 m/s2.  Make your answer a positive number. (Please answer to the fourth decimal place - i.e 14.3225)

Q3-An 8-kg block is suspended from a spring having a stiffness K= 80 N/mlf the block is given an upward velocity of 0.4 m/s when it is 90 mm above its equilibrium position,determine the equation which describes the motion and the maximum upward displacement of the block measured from the equilibrium position. Assume that positive displacement is measured downward. Own=3.162 rad/s 0.031622 rad/s Own=31622 rad/s Own=0.31622 rad/s Own= 0.0375 rad/s

5

You first say that RA=57.1667. Then later in the problem you use the value 157.1667...what is the actual value of RA? Also, should it be positive or negative? You have a down arrow, so I'm assuming negative?

Explain solution If the value of P is 180-lb, determine the angle θ at which it must be inclined with the smooth plane to hold 300-lb box in equilibrium.