Acceleration is defined as the rate of change in velocity per unit of time. It can occur through increasing or decreasing speed in a straight line, or changing direction at a constant speed. The formula for acceleration is the change in velocity divided by time. Several word problems are then presented calculating acceleration based on initial and final velocities over time intervals for vehicles like cars and bikes accelerating or braking.

1. ACCELERATION

2. ACCELERATION
Acceleration is defined as the rate of change in velocity
of a moving object per unit of time. The change in
velocity can be achieved in three ways:
a.by increasing its speed while traveling in a straight
line;
b.by decreasing its speed while traveling in a straight
line; and
c.by changing its direction even while traveling at a
constant speed.

3. Formula:
Acceleration =
𝜟𝒗
𝒕
• a =
𝒗𝒇−𝒗𝒊
𝒕
where vf is the final velocity and vi is the initial
velocity.
The unit for acceleration is m/s2.

4. PROBLEM 1
A car travels at 90km/h. What is its
acceleration in 3 hours if it started
from rest?

5. PROBLEM 2
How long will it take a driver to bring
a jeepney traveling at 50m/s to a
complete stop if its acceleration is
-0.005 m/s2 ?

6. PROBLEM 3
Michael is driving his sports car at
30 m/s when he sees a dog on the
road ahead. He slams on the breaks
and comes to stop in 3.0 seconds.
What was the acceleration of
Michael’s car?

7. PROBLEM 4
As a car comes to a stop, it slows
from 25 m/s in 2.8s. Find the
acceleration of the car.

8. PROBLEM 5
•A car starts from rest and
accelerates uniformly over a time of
5.21 seconds for a distance of 110 m.
Determine the acceleration of the
car.

9. PROBLEM 6
•A race car accelerates
uniformly from 18.5 m/s to
46.1 m/s in 2.47 seconds.
Determine the acceleration
of the car.

10. PROBLEM 7
•A bike accelerates uniformly
from rest to a speed of 7.10
m/s over a distance of
35.4m. Determine the
acceleration of the bike.

11. GRAPHICAL ANALYSIS OF MOTION

12. GRAPHICAL ANALYSIS OF MOTION