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Free Body Diagram Wednesday, October 19, 2022 free body diagram can represent any object • Shows 0 1:07 PM all of the forces acting on it DRAWING everything can be represented w/ a box or dot o forces • label are represented by arrows (blc force is a vector) forces pay attention to o is · Constant velocity= balanced arrows - acceleration = unbalanced arrows CHECKLISTE • first force o is it on a surface? yes - draw по- крер constant velocity vs. acceleration ↑FN o is there is always normal force (perp.) going o is it being pushed / pulled? o is it falling? yes - use goes to no no applied force gravity the force listed, if direction isn't the right a rope / string (etc.) being pulled? yes-draw F there friction? yes-always opposite direction of no ignore it, it's neglected motion FG stated, it only need it if the problem asus for it / requires, it to make problem work o is it falling? no - ignore "₁ ois it yes - - no normal is 1) ois it hanging (or being pulled by rope)? yes- add tension force (FT) 2) there air resistance? force (no surface) yes- opposite the direction of falling no - it is neglected o|F IT IS ACCELERATING... on a spring? yes add spring force (FK) • IF IT HAS A CONSTANT VELOCITY - one side should be bigger than the other - all forces should be balanced - constant velocity examples: a book is resting on a table a book Fo is being pushed along a table, neglect friction FA along the floor Constant velocity 3) box is being pushed to the left...
iOS User
Stefan S, iOS User
SuSSan, iOS User
at a it to make problem work FA FA -accel FF -accel & direction 3) box is being pushed along the floor to the left at a Constant velocity FA FN FG FF 4) pushed along floor to left & accelerating, there is friction FN + 5) pushed along floor & slowing down while moving right TE A FG 6) apple falls from tree, neglect air resistance 7) football wicked & is now flying through air, →not currently occurring neglect air resistance 모 add air resistance doesn't matter FAIR 11) 8) person is skydiving & released parachute, traveling at Constant velocity negligible velocity I up 모 FAIR FG - Vy=0 9) hockey puck is sliding on wood FAIR FN 1 FG FG FAIR 10) Car parked on incline piece friction, moving right FN FG doesn't matter where you draw it, EXCEPT Straight up! down Straight Sliding down frictionless incline of ice with at constant inertia, no applied force X FN IFG
This shows how forces are to be drawn.
14
Study guide summarizing important concepts in the dynamics unit, such as forces, free body diagrams, and equations.
1
all the formulas you should memorize for the AP exam that will be helpful :)
35
Notes on the first unit of APP1: Kinematics. This describes how things move, including the concepts of displacement, velocity, and acceleration.
0
0
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Notes for the first unit of AP Physics I
Free Body Diagram Wednesday, October 19, 2022 free body diagram can represent any object • Shows 0 1:07 PM all of the forces acting on it DRAWING everything can be represented w/ a box or dot o forces • label are represented by arrows (blc force is a vector) forces pay attention to o is · Constant velocity= balanced arrows - acceleration = unbalanced arrows CHECKLISTE • first force o is it on a surface? yes - draw по- крер constant velocity vs. acceleration ↑FN o is there is always normal force (perp.) going o is it being pushed / pulled? o is it falling? yes - use goes to no no applied force gravity the force listed, if direction isn't the right a rope / string (etc.) being pulled? yes-draw F there friction? yes-always opposite direction of no ignore it, it's neglected motion FG stated, it only need it if the problem asus for it / requires, it to make problem work o is it falling? no - ignore "₁ ois it yes - - no normal is 1) ois it hanging (or being pulled by rope)? yes- add tension force (FT) 2) there air resistance? force (no surface) yes- opposite the direction of falling no - it is neglected o|F IT IS ACCELERATING... on a spring? yes add spring force (FK) • IF IT HAS A CONSTANT VELOCITY - one side should be bigger than the other - all forces should be balanced - constant velocity examples: a book is resting on a table a book Fo is being pushed along a table, neglect friction FA along the floor Constant velocity 3) box is being pushed to the left...
Free Body Diagram Wednesday, October 19, 2022 free body diagram can represent any object • Shows 0 1:07 PM all of the forces acting on it DRAWING everything can be represented w/ a box or dot o forces • label are represented by arrows (blc force is a vector) forces pay attention to o is · Constant velocity= balanced arrows - acceleration = unbalanced arrows CHECKLISTE • first force o is it on a surface? yes - draw по- крер constant velocity vs. acceleration ↑FN o is there is always normal force (perp.) going o is it being pushed / pulled? o is it falling? yes - use goes to no no applied force gravity the force listed, if direction isn't the right a rope / string (etc.) being pulled? yes-draw F there friction? yes-always opposite direction of no ignore it, it's neglected motion FG stated, it only need it if the problem asus for it / requires, it to make problem work o is it falling? no - ignore "₁ ois it yes - - no normal is 1) ois it hanging (or being pulled by rope)? yes- add tension force (FT) 2) there air resistance? force (no surface) yes- opposite the direction of falling no - it is neglected o|F IT IS ACCELERATING... on a spring? yes add spring force (FK) • IF IT HAS A CONSTANT VELOCITY - one side should be bigger than the other - all forces should be balanced - constant velocity examples: a book is resting on a table a book Fo is being pushed along a table, neglect friction FA along the floor Constant velocity 3) box is being pushed to the left...
iOS User
Stefan S, iOS User
SuSSan, iOS User
at a it to make problem work FA FA -accel FF -accel & direction 3) box is being pushed along the floor to the left at a Constant velocity FA FN FG FF 4) pushed along floor to left & accelerating, there is friction FN + 5) pushed along floor & slowing down while moving right TE A FG 6) apple falls from tree, neglect air resistance 7) football wicked & is now flying through air, →not currently occurring neglect air resistance 모 add air resistance doesn't matter FAIR 11) 8) person is skydiving & released parachute, traveling at Constant velocity negligible velocity I up 모 FAIR FG - Vy=0 9) hockey puck is sliding on wood FAIR FN 1 FG FG FAIR 10) Car parked on incline piece friction, moving right FN FG doesn't matter where you draw it, EXCEPT Straight up! down Straight Sliding down frictionless incline of ice with at constant inertia, no applied force X FN IFG