1. Static Equilibrium

2. A truck of mass m pulls one-third of
the way onto a uniform slab bridge of
mass M. The bridge slab has a length L
and is supported by two vertical
columns as shown in the diagram.
The upward force exerted on the bridge by the
column on the left is L m M N

3. A truck of mass m pulls one-third of
the way onto a uniform slab bridge of
mass M. The bridge slab has a length L
and is supported by two vertical
columns as shown in the diagram.
The upward force exerted on the bridge by the
column on the right is

4. The tension in the wire isA
A physics sign of mass m hangs a the end of a beam of length L and mass M. The beam is clamped to the wall at one end and is held in place by a wire at the other, as shown in the diagram.
The tension in the wire is q

5. A physics sign of mass m hangs a the end
of a beam of length L and mass M. The
beam is clamped to the wall at one end
and is held in place by a wire at the other, as
shown in the diagram. Tension in the wire is T.
The vertical component of the force the wall
exerts on the beam is q

6. A physics sign of mass m hangs a the end B
A physics sign of mass m hangs a the end
of a beam of length L and mass M.
The beam is clamped to the wall
at one end and is held in place by a wire
at the other, as shown in the diagram.
Tension in the wire is T.
The horizontal component of the force the wall exerts on
the beam is q

7. D A light horizontal beam attached to a wall at one end is
held in place by a wire attached to the other as shown in
the diagram. The tension in the wire is T and the vertical
and horizontal components of the for the wall clamp exerts
on the beam are V and H, respectively. A bear starting at
the wall walks toward the other end of the beam. T H V
Which of the following statements correctly describes the changes
in the forces acting on the beam
I. Tension in the wire increases
II. Horizontal component decreases
III. Vertical component decreases
(A) statement I only
(B) Statement III only
(C) Statements I and II
(D) Statements I and III
(E) Statements I, II, and III

8. C A light horizontal beam attached to a wall at one end is
held in place by a wire attached to the other as shown in
the diagram. The tension in the wire is T and the vertical
and horizontal components of the for the wall clamp exerts
on the beam are V and H, respectively. A bear starting at
he wall walks toward the other end of the beam. T H V
Which of the following statements correctly describes the changes
in the forces acting on the beam
I. Tension in the wire increases
II. Horizontal component increases
III. Vertical component increases
(A) statement I only
(B) Statement III only
(C) Statements I and II
(D) Statements I and III
(E) Statements I, II, and III

9. A uniform ladder of mass m is placed against q
A uniform ladder of mass m is placed against
a frictionless wall. The ladder makes an angle q
with the floor as shown in the diagram
The force the wall exerts on the top of the ladder is

10. A uniform ladder of mass m is placed against q
A uniform ladder of mass m is placed against
a frictionless wall. The ladder makes an angle q
with the floor as shown in the diagram
The frictional force the floor exerts on the ladder is

11. A uniform ladder of mass m is placed against q
A uniform ladder of mass m is placed against
a frictionless wall. The ladder makes an angle q
with the floor as shown in the diagram
The magnitude of the vertical component of the force the floor
exerts on the ladder is