Asign has a mass of 1050 kg, a height h = 1 m, and a width w = 4 m. it is held by a light rod of length 5 m that is perpendicular to a rough wall. a guy wire at 23° to the horizontal holds the sign to the wall. note that the distance from the left edge of the sign to the wall is 1 m. suppose we rely upon friction between the wall and the rod to hold up the sign (there is no hinge attaching the rod to the wall). what is the smallest value of the coefficient of friction μ such that the sign will remain in place?

t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanatio

f=ma newton's second law 7x8=56n

ok

explanation:

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards