speed
The 2 variables needed to
determine speed?
distance and time
The formula for
acceleration.
a = vf – vi
____
t
The number of feet a
runner would run in a
marathon. (26.2 miles)
138,336 feet
These are used to help
determine is something is
moving.
reference point
The speed of a bird (in
feet/sec) that flew for 10
hours and traveled a
distance of 100 miles.
14.7 feet/second
A snow sled rolls down a hill
in 5 sec. If the initial
speed is 0 m/s and the final
speed is 12 m/s, determine
the acceleration.
2.4 m/s2
The number of pounds of a
car that has a mass of
1000 kg. (1 kg = 2.2 lbs)
2,200 lbs
The three types of speed
include…
instantaneous,
constant and average speed?
The speed of a plane that flew for 2 hours and traveled 1000 miles.
v=500 m/h
The acceleration of a
dragster that starts
motionless and then
travels at a rate of 51
m/s in 7.18 seconds.
7.1 m/s2
The number of grams of a
mass that weighs 44.2 lbs.
(2.2 lbs = 1 kg)
approximately 20,090
grams?
This term is defined by the
following: “a description
of both speed and the
direction of motion.”
velocity?
The distance a fox ran
chasing a rabbit for 65
seconds at 10 m/s.
650 meters
A plane is landing in Sioux
Falls, SD. It is traveling
at 350 mph and stops in
0.0025 hours. This is the
planes acceleration.
-140,000 mph2
The number of mm a
spaceship travels in
30,000 miles. (2.54 cm =
1 inch)
4.8 x 1010 mm
What is the acceleration of the
marble from 0 to 100 mm?
0.25 mm/sec2
The time it took a train to
travel 400 miles at a rate
of 30 miles/hour.
13.3 hours
The acceleration of the
bullet in mph2 when a gun
at rest fires a bullet at a
rate of 880 feet/sec in
1.08 seconds.
2,000,000 mph2
Convert 1.02 km/hr to
inches/sec. (1600 m = 1
mile)
11.22 inches /
second
According to the graph, this is
the average speed of the
marble.
approximately 2.5
mm/sec