2. (A) 64 m/s (B) 72 m/s (QU 54 m/s...
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2. (A) 64 m/s (B) 72 m/s (QU 54 m/s The displacement of a particle is given by y= a + bt+ct-dt' The initial velocity and acceleration are respectively (A) b.-4d (B) - b, 2c (C) b, 2c (D) 2c, 40 want of a naticle is represented by the following equations = 3+ + 7+ + 5t + 8

JEE/Engineering Exams
Physics
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( Rightarrow S=a+b t+c t^{2}-d t^{4} ) ( begin{aligned} int frac{delta S}{d t}=v &=b+2 c t-4 j t^{3} & v(0)=(b)(text { inihal velocing }) end{aligned} ) ( frac{bar{f} y}{d t}=a=0+2 c-12 d t^{2} ) ( a(0)=20 ) (imihal acclerahin) this: ( (C) ) b, ( 2 C )
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