balance and stability

Question 1

how does equilibrium is achieved

Answer 1

the resultant force and net torque acting upon an object are equal to zero
an object in equilibrium is either at rest, or is moving with a constant velocity because no external force has been applied.

Question 2

what is stability

Answer 2

resistance of an object to having its equilibrium disturbed.
The more stable the object, the more resistance it has against forces or torques that attempt to disrupt its equilibrium.

Question 3

what is balance

Answer 3

ability to control the current state of equilibrium; implies conscious effort and coordination

Question 4

give exemple of stable equilibrium, unstable equilibrium, neutral equilibrium

Answer 4

stable: pyramide on the base
unstable: pyramide on the tips
neutral: a sphere

Question 5

if a force applied on a object make it fall the gravity act as a _ force

Answer 5

disrupted

Question 6

if a force applied on a object does make it fall the gravity act as a _ force

Answer 6

restorative

Question 7

what is the majore factor affecting linear stability

Answer 7

the mass
the greater the mass, the greater the force required linearly accelerate the object

Question 8

rotational stability is affected by

Answer 8

mass, height of center of gravity and size of base of support

Question 9

with a larger mass a _ torque must be applied to move an object of greater rotational inertia

Answer 9

greater

Question 10

the _ the COG, the greater the _ displacement of the COG and the _ the force required to disrupt rotational equilibrium

Answer 10

lower, greater, greater