PHYS 1425 Ch. 12 Question and answers rated A+ 2025/2026
equilibrium object at rest
statics subject concerned with the determination of
the forces within a structure
3. TWO necessary force is too great?
conditions for an
object to be in equi- 9. What happens if the force is
librium (at rest): greatest?
4. when doing statics
prob- lems...
5. object is said to be in
(a)stable
(b)unstable
(c)neutral
equilibrium depending
on whether a slight
displace- ment leads
to...
6. an object in stable
equilib- rium is also
said to be in...
7. What law states that
the change in length
of an ob- ject is
proportional to the
applied force?
8. What happens if the
1/
12
, (1) vector sum of all forces on it must
be zero
(2) sum of all torques (calculated
about any arbitrary axis) must also be
zero
important to apply the equilibrium
conditions to only one object at a time
(a) a return to original position (origin)
(b) further movement away from
original position
(c) rest in the new position
balance (another way of saying at rest)
Hooke's Law
Object will exceed its elastic limit (it
will no longer return to its original
shape when the distorting force is
removed)
Object will exceed ultimate strength and
fracture
2/
12
equilibrium object at rest
statics subject concerned with the determination of
the forces within a structure
3. TWO necessary force is too great?
conditions for an
object to be in equi- 9. What happens if the force is
librium (at rest): greatest?
4. when doing statics
prob- lems...
5. object is said to be in
(a)stable
(b)unstable
(c)neutral
equilibrium depending
on whether a slight
displace- ment leads
to...
6. an object in stable
equilib- rium is also
said to be in...
7. What law states that
the change in length
of an ob- ject is
proportional to the
applied force?
8. What happens if the
1/
12
, (1) vector sum of all forces on it must
be zero
(2) sum of all torques (calculated
about any arbitrary axis) must also be
zero
important to apply the equilibrium
conditions to only one object at a time
(a) a return to original position (origin)
(b) further movement away from
original position
(c) rest in the new position
balance (another way of saying at rest)
Hooke's Law
Object will exceed its elastic limit (it
will no longer return to its original
shape when the distorting force is
removed)
Object will exceed ultimate strength and
fracture
2/
12
