Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
1. Understandhorizontal acceleration |
Ha = 0 m/s/s or a = 0 |
|
|
1. Understandthe independence of horizontal and vertical motion |
Horizontal motion does not influence vertical motion and Vertical motion does not influence horizontal motion |
|
|
Understand how horizontal displacement of a projectile is maximized |
1) Initial horizontal velocity 2) Initial vertical velocity 3) Initial height |
|
|
1. Understandwhat units are used to measure weight |
Newtons |
|
|
1. Understandthe difference between internal and external forces |
Only external gravity can move anobjects center of gravity (w/ the exception of gravity) Internal gravity- forces that actwithin the object or system being investigated External gravity- forces that act onan object as a result of its interaction with the environment surrounding it |
|
|
1. Understandthe difference between contact and noncontact forces |
Gravity (noncontact), Push or pull(contact)Noncontact(gravity) - causes all objects to accelerate at 9.81 m/s/s 1kg (mass) = 9.81 N (force/weight) kgX 9.81 m/s/s = NContact-occur when objects contact each other |
|
|
1. Understandthe components that form contact forces |
Ground reaction force (GRF) = normalcontact force (perpendicular to object) Friction force (parallel to object) |
|
|
1. Understandthe different types of dry friction |
Limiting (greatest force), dynamic (least) |
|
|
1. Understandthe difference between colinear and concurrent forces |
Colinear- forces with same line ofaction Concurrent- do not act along thesame line but do act through the same point |
