Daya gerakan I............................

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1. Brianne (4 Sirius)
DAYA
GERAKAN I
GERAKAN
LINEAR GRAF
GERAKAN
LINEAR
JATUH
BEBAS
INERSIA
MOMENTUM
DAYA
IMPULS &
DAYA
IMPULS
BERAT
1. Distance, d
-Total length of path an object travels from one point to
another.

2. Displacement ,s
-The shortest distance between two points.
3. Formulas for distance, speed & acceleration
a) � = ??????/� , � = speed , ms-1
?????? = distance , m
� = time , s
b) � = �/� , � = velocity , ms-1
� = displacement , m
� = time , s

c) ?????? = � − � /� , ?????? = acceleration , ms-2
� = initial velocity , ms-1
� = final velocity , ms-1
� = time , s
-Motion of an object is
affected by gravitational
force
(no other forces - air
resistance , friction)

1. Gravitational acceleration,
g = 9.81 ms−2
a) when object falls down,
value of g is positive (+)
b) when obejct is thrown
up, the value of g is
negative (-).
- the tendency of an object to
resists changes to its state of
rest or uniform motion in a
straight line
2. Newton's first law of motion
- states that every object
continues in its state of
rest or uniform speed in a
straight line unless acted
upon by an external force.
- The larger the mass, the
greater the inertia of an
object.
a) Strength of the gravitational field, g
b) force per unit mass due to gravity
c) g of Earth = 9.81 N kg−1

1. BERAT : Gravitational force acting on an object
a) W = mg , W= weight , N
m= mass , kg
g= gravitational acceleration, ms−2
4. Persamaan SATUV
a) � = �� + 1/2 ??????�2
→ no v given
b) � = � + ??????�
→ no s given
c) �2 = �2 + 2??????�
→ no t given
d) � = 1/2 (�+�) �
→ no a given
1. Displacement -
time (s-t)
- Gradient = velocity
2. Velocity - time (v-t)
- Gradient =
acceleration
- Area under the
graph =
displacement @
distance
Displacement - time
(s-t) graph
Displacement - time
(s-t) graph
Velocity - time
(v-t) graph
Velocity - time
(v-t) graph
- product of mass and velocity
- ?????? = ?????? × �
2. Types of situations involving principle of conservation of
momentum
a) Collision: Total momentum before collision is equal to the
total momentum after the collision
b) Explosion: The total momentum before and after the
explosion is zero
1. Impulse = change in momentum ( kg ms-1 )
- ??????� = ??????� − ??????�
2. Impulsive force = rate of change of
momentum (N)
- ?????? = ??????� − ??????� / �
3. Newton's Third Law of Motion
- For every action there is a reaction of
equal magnitude but opposite direction

4. Time vs impulsive force
- ?????? = ??????� − ??????� / �
- ?????? ∝ 1/�
- When t ↑ , F ↓
- Force can change the shape
and the original state of motion
(direction @ speed) of an
object.
- Force formula
?????? = ???????????? , ?????? = mass
?????? = acceleration