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In above question the rocket goes up and...

In above question the rocket goes up and get down on the following parts respectively:-

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The correct Answer is:
`uhat(i)+sqrt(sqrt(3)Rg) hat(j), sqrt((sqrt(3)R)/g)`
`:.` Vertical displacement of particle`=(Rsqrt(3))/2`

Time for this `=sqrt((2xxRsqrt(3)/2)/g)=sqrt((sqrt(3)R)/g)`
`vec(v)(t)=uhat(i)+g that(j)=uhat(i)+gxxsqrt((sqrt(3)R)/g)hat(j)=uhat(i)+sqrt(sqrt(3)Rg) hat(j)`
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ALLEN -MOTION IN A PALNE-EXERCISE-04[A]
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  4. In above question the retardation of rocket is:-

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  5. In the above question, the acceleration of the rocket is :

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