- #1
IUIU
- 2
- 0
Hi
I have a question about using gravity in dynamics...
first
In my thinking,,,
All force in dynamics is transferred by contact.
for example friction, tension, normal force,,,
but only except for gravity.
so I have always trouble in calculating gravity.....
In simple kinetics of parcicles
Newton's second law is
sum ( indivisual forces may be acting on the mass m)=m*a
I understand equation. but I have been confusing where I put gravity term.
Left or Right? ([indivisual] or [m*a])
In most problem about hanging problem, gravity term is in the Right.
but problem about car, gravity term is in the Left.
I don't know why this thing happen. ...
Help me please!
I have a question about using gravity in dynamics...
first
In my thinking,,,
All force in dynamics is transferred by contact.
for example friction, tension, normal force,,,
but only except for gravity.
so I have always trouble in calculating gravity.....
In simple kinetics of parcicles
Newton's second law is
sum ( indivisual forces may be acting on the mass m)=m*a
I understand equation. but I have been confusing where I put gravity term.
Left or Right? ([indivisual] or [m*a])
In most problem about hanging problem, gravity term is in the Right.
but problem about car, gravity term is in the Left.
I don't know why this thing happen. ...
Help me please!