Summary OCR Physics A Notes: Chapter 4 Forces in action

,Force , Mass , Acceleration Newton's second Law
,
a
→
F a✗ F
→
{
In a ✗ In

Eyal
a ✗ 's
"
MS
Newton's 2nd Law
p ✗ ma /
T F = ma
- -




l Newton is the force
-2 requireddirection
to accelerate
of
a mass
of 1 kg by 1ms in the the force .




-2
IN =
lkgms

,Mass and weight


_ÉEÉ m= looks [
kg]
÷ :
W=m ✗
g [Newton]
-

9=9.81 INKS I
- '




[ wish ]

On the moon A KG MS-2
, g

, Centre of Mass and Gravity


↓↓↓↓↓↓↓↓
↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓
↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓

Centre of Mass

Centre of Gravit
Be




V




-



hang it up at
different corners


""° ""
) " "↳
°
a.
downwards
☒
-
the intersection at
the tires is the
centre of gravity

↑ lines
of action