Page 17 - Science E-Book Prep.3 2024-2025 1st term unit1_Neat
P. 17
Science Department Bec. there’s no change in
Prep.3 object’sspeed (?v = zero)
6. The object which moves at
uniformspeed, its acceleration
equals zero.
What's meant by?
A body moves by acceleration = It means that, the speed of this
5m/sec². body increasesby 5m/s each one
second
A body moves by acceleration = It means that, the speed of this
-2m/sec² bodydecreases by 2m/s each one
second
A body moves at zero It means that this body moves at
acceleration. uniform speed.
The slope of the straight line It means that this body moves with
regularspeed (30m/s or km/h)
in graphicrelationship
It means that this body moves with
(distance-time) equal 30. uniformacceleration.
An object’s speed increases
by equalamount at equal
periods of time.
First Term 16
