Question

pls ans with explanation...

Answer 1

Answer:

Acceleration a=dv/dt

                       =d(At-Bt²)/dt

                       =A-2Bt

When a=0,

    ∴ 0=A-2Bt

       2Bt=A

            t=A/2B

∴Velocity=At-Bt²

               =A×A/2b-B×(A/2B)²

               =A²/4B

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