TYPES OF FORCES:
Gravitational force (weight: Fg
The gravitational force
Earth exerts surface
any object
the on on o r near its
Fg
=
mg-close to surface
of Earth=918m. 57
Normal force:Fr
The perpendicular force exerted by a surface on an
object in contact with it
(always 900 relative to surface)
Frictional force: Ff
The force that opposes of parallel surface with the object
the motion an
object and acts to the which is in
· draw forces retails touching object draw forces we tail on dot ·
draw forces (rectors)
head-to-tail
ALL-LABEL F: force exerted
by
-
-
- or
Frope:
*
Force exerted
by - on ↓ is in tension)
NEWTON'S FIRST LAW OF MOTION
An state of rest uniform constant) unless it is
object will continue in a or
(moving with a
velocity
force
acted upon by a net or resultant
If Newton I
Fez = 0 ->
us understand of
Helps intia - the
tendency of an
object to resist a
change
in its state rest
- force or uniform motion
(Newton I + inertia -
more conceptual than actual calc (used to help cake the
NEWTON'S SECOND LAW OF MOTION
force, Fret, of mass, m, the accelerates the direction
When a net is applied to an
object object in
of net force. The acceleration, a, is metforce
the
directly proportional to the and
inversely proportional
to the mass
#net = m a
C ~
Yes - and we signs
force line? (it resultant)
calculating straight
-
net No ->
-
components
tips for call:
1. Free body diagram
2. Choose direction as t
3. Determine Fret
4.
Apply Fret = ma
(it objects are
connected, same acceleration)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller ricciwaksman. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £2.72. You're not tied to anything after your purchase.