On a p t graph how can you tell the greatest least

On a p-t graph:
How can you tell the greatest & least speed?
How can you find the objects distance traveled?
How can you find the objects displacement?
When is velocity zero?
When is an object accelerating?
On a v-t graph:
How can you tell the greatest & least speed?
How can you tell the greatest & least acceleration?
When is acceleration zero?
How can you find an object’s displacement?
When is the velocity zero?
PROBLEMS :
For some more straight forward problems check out the book on pages 71-73
Try the following…. Remember you don’t have to do all of them… especially if you feel comfortable
with the more straight forward problems. Read the problem first and if you feel comfortable, then skip it
and try it later if you have time.
20 ( 4 s )
27 ( 108 m )
32 ( 10.84 m/s, 51.64 s )
41 ( 2.55 s, 2.63 s )
TOUGHER PROBLEMS :
1) As you approach a stoplight in a car moving at 18 m/s, the light turns yellow. After a 1.0 s reaction
time, you apply the brakes causing the car’s speed to decrease at a rate of 4.0 m/s 2 until it stops. (a)
Determine the distance your car traveled after the light turned yellow and before the brakes were
applied. (b) Determine the time interval needed to stop the car after the brakes were applied and (c) the
distance the car traveled during this time interval. (d) Determine the total stopping distance.