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  • The displacement of a particle is given by The initial

The displacement of a particle is given by y=2 a+b t+c t^2-d t^4The initial velocity and acceleration are respectively -

Option: 1

b, 4 c


Option: 2

b, c


Option: 3

b,c


Option: 4

b, 2 c


Answers (1)

best_answer

Given,  \quad y=2 a+b t+c t^2-d t^4
\text { Velocity } v=\frac{d y}{d t}=0+b+2 c t-4-d t^3
v=b+2 c t-4 d t^3
For initial velocity  t=0 we get - 
v=b
 Acceleration (a) 
=\frac{d v}{d L}=\frac{d}{d t}\left[b+2 c t-4 d t^3\right]
=2 c-12 d t^2
 put, t=0 ,
 Acceleration a =2 c

Posted by

Suraj Bhandari

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