Medahnics - Newton And Etc Flashcards
1
Q
What is the force applied by an object = to
A
The reaction force
2
Q
Force tension whatever when constant velocity
A
= to the weight
3
Q
If they give question in vetors
A
Keep everything in vectors
4
Q
What to underline
A
Vectors
5
Q
What tells you that tension is the same
A
Tension same if light string and pulley frictiinless so smooth
6
Q
What do you remember about tension and equilibrium in different bodies
What about friction - what crucial point need to know
A
Tension is a couple, different arrows but same quantity
- so each bidy must be equilibrium
- friction will act to oppose big mass so it stays still
FRICTION CAN BE ACTING EVEN IF STATIONARY
