Breaking a water balloon - 2000 frames/second

 

 

V. Finding displacement using V vs t graphs

since V = d/t

 

then d = Vt

=

Area under the plot

= displacement (distance) 

 

 

 

Ex) What is the displacement this object covered from t = 0 to t = 6 seconds?

d = Area of the triangle:

 

 

 

 = 1/2bh

 

 

 

= 1/2(6 sec)(70m/sec)

 

 

= 210 m

 

Ex 1)

Object's displacement from
 t = 1 sec to t = 3 sec?

 

 

 

 

 

 

d = Area = base x height

 

 

 

= (2 sec)(10 m/sec) = 20 m

 

 

 

 

Ex 2) Object's displacement from t = 6 sec to t = 8 sec ?



d = area of trapezoid

 

= 1/2 (h1 + h2) x base

 

 

 

d =  (25 m/s + 10 m/s) (2 sec)
  2    

 

 

 

= 35 m

 

 

 

 

Smallest displacement?

| Larger|
St. Mary's Physics

 

 

 

Largest B, Smallest D

 

 

 

 

 

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