## Static-equilibrium problem 13

In the figure above, a 47 kg boom of length 5.5 m is supported by a cable that has a braking tension of 750 N. The cable is perpendicular to the boom and is...

## Static-equilibrium problem 11

A plank, of length L=3.7 m and mass M=9.7 kg, rests on the ground and on a frictionless roller at the top of a wall of height h=1.60 m. The center of gravity of...

## Static-equilibrium problem 6

A non-uniform bar of weight W=45.0 N is suspended at rest in a horizontal position by two massless cords. The angle ϕ between cord 2 and the vertical is equal to 27.5°. The bar...

## Static-equilibrium problem 10

A 26.4 kg beam is attached to a wall with a hinge and its far end is supported by a cable such that the angle between the beam and the cable is 90°. If...

## Static-equilibrium problem 12

A sphere of mass 8.9 kg rest in a groove, as shown in the figure below. The angle between the surfaces is θ=54.0°. Assume no friction and take the weight of the sphere to...

## Static-equilibrium problem 8

The weightless horizontal bar in the figure below is in equilibrium. Scale B reads 4.20 kg (N.B. as you know, the scale should read N, but no one told manufacturer). The distance in the...

## Static-equilibrium problem 2

A uniform horizontal bar of length L=5m and weight 251 N is pinned to a vertical wall and supported by a thin wire that makes an angle θ=25° with the horizontal. A mass M,...

## Static-equilibrium problem 3

The system in the figure is in equilibrium. A mass M1=234 kg hangs from the end of a uniform strut which is held at an angle θ=42.0° with respect to the horizontal. The cable...

## Static-equilibrium problem 7

A uniform sphere of weight 9.0 N and radius 17.8 cm is held in place by a rope attached to a frictionless wall, a distance 74.0 cm above the center of the sphere. Solution...

## Static-equilibrium problem 4

You are holding a ball of mass 108 g in your hand as shown in the figure.Your arm (length L=57 cm) is held in an outstretched horizontal position by action of the deltoid muscle,...

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