NOTES: ACCELERATION
Name ____________________________________
Period _______ Date _____________
Acceleration:
Formula:
Δv:
Δt:
vf:
vo :
tf:
to:
SI unit for acceleration
Form #1:
Form #2:
Constant Speed
Car at a constant
speed of 10 m/s
Time at which car passes each flag
Car’s total distance at each flag
Car’s speed at each flag
Distance between flags
Acceleration
Car at a constant
speed of 10 m/s,
but accelerating at
2
10 m/s
NOTES: ACCELERATION
Name
____________________________________
Name
____________________________________
Period
_______
Date
_____________
Period
_______
Date
_____________
Example Problems:
1. Grace is driving her sports car at 30 m/s when a ball rolls out into
the street in front of her. Grace slams on the brakes and comes
to a stop in 3.0 s. What was the acceleration of Grace’s car in m/s2?
2. If a stationary F-22 Raptor accelerates at a rate of 28 m/s2 on take off,
how long would it take the Raptor to break the sound barrier (331 m/s).
3. A ski boat traveling at a constant speed suddenly accelerates at a rate
of 2.0 m/s2 for 7.0 seconds, reaching a final speed of 18 m/s. What was
the boat’s original speed (vo) in m/s and mi/h?
4. A stationary skateboard rider eases his skateboard over a mega ramp. He
reaches the bottom 2.3 seconds later. His rate of acceleration was at
a constant 7.5 m/s2. How fast (vf) was he going in m/s when he reached
the bottom of the ramp. How fast is that in mi/h?
NOTES: ACCELERATION
Name ____________________________________
Period _______ Date _____________
Moving Man Online Demo
If moving man is at the tree and given an ending velocity of 0 m/s, a negative
acceleration of -1.0 m/s2, and the distance to the wall is 18 m, then what
starting velocity will moving man need in order to run toward the wall and come
to a stop just short of the wall?
vo = vf2 – ( 2a∆d )