Mechanics Flashcards
1
Q
Explain the conditions that need to be satisfied for a turning force to be classified as a couple
A
- The forces must have equal magnitude and work in the opposite direction
- Forces must occur in the same plane
2
Q
State the difference between elastic collisions and inelastic collisions
A
Elastic collisions: Kinetic energy is conserved
Inelastic collisions: Kinetic energy is not conserved
3
Q
How do springs act when in parallel?
A
- Spring constants are combined
- For 2 springs, extension would half if mass is constant
4
Q
State the equation for the spring constant of parallel springs
A
1/K(total) = 1/K(1) + 1/K(2) …
5
Q
How do springs act when in series?
A
The observed extension would double, compared to its natural state.
6
Q
State the equation for the spring constant of springs in series
A
K(total) = K(1) + K(2)
