Math, asked by shirinoza, 9 hours ago

[3] 12. Draw the distance-time graph for given velocity-time graph. Use appropriate marking on graph. Also find its average velocity [3] 10- Velocty (m/s) 5 10 15 Time (s)​

Answers

Answered by ronaldogamerz44444
0

Step-by-step explanation:

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Answered by amitnrw
1

Given : velocity-time graph.

To Find : Draw the distance-time graph

average velocity

Solution:

at t = 0   , S = 0  

S = (1/2)(u + v) * t  ,  v = u + at  

at t = 1   v = 2  =>   S =  (1/2)(0  + 2) * 1   = 1

at t =2  v = 4  => S = (1/2)(0 + 4) * 2  =   2

at t =3 v = 6  => S = (1/2)(0 + 6) * 3  =   9

at t =4  v = 8  => S = (1/2)(0 + 8) * 4 =   16

at t =5  v = 10  => S = (1/2)(0 + 10) * 5 =   25

from t = 5 to t = 10  v  is constant 10

Hence at

t = 6   S = 25 + 10* 1  = 35

t = 7   S = 25 + 10* 2 =  45

t = 8   S = 25 + 10* 3  = 55

t = 9  S =  25 + 10* 4 =  65

t =10   S = 25 + 10* 5  = 75

from t = 10 to 15

t = 11  ,  S =  75  +  (1/2)(10 + 8) * 1  =   84

t = 12  ,  S =  75  +  (1/2)(10 + 6) * 2 =  91

t = 13  ,  S =  75  +  (1/2)(10 + 4) *3 =   96

t = 14  ,  S =  75  +  (1/2)(10 + 2) *4 =   99

t = 15  ,  S =  75  +  (1/2)(10 + 0) *5 =  100

Now plot points :

distance-time graph is plotted

Total Distance =  100   m

Time = 15 sec

Average velocity =  100/15  =  20/3  = 6.67 m/s

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