Position of a particle moving along x-axis is given by x = 3T - 4t2 + t3, x is in metre and t is in second find the average velocity of particle in the time interval from t = 2 second to 4 second
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hope it helps you
all the best
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yangsi:
okkk
sorry for yesterday I was busy...but I got the answer
It just simply put the value of time in the equation for both cases and then substrate
oo thanks dear
☺☺☺
What if instead of velocity, speed is there.
No there is velocity
Yes and you had calculated av speed
Sorry , had calculated average speed.
I don't think so.... bcz this answer is given by my sir and in my book answer is 7m/s
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Explanation:
so vf-vi=12-(-2)=14 time =4-2=2sec
Vavg=net displacement/time taken =14/2=7m/s
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