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A block of mass m is attached to a massl...

A block of mass m is attached to a massless spring of force constant k, the other end of which is fixed from the wall of a truck as shown in figure. The block is placed over a smooth surface and initially the spring is unstretched. Suddenly the truck starts moving towards right with a constant accleration `a_(0).` As seen from the truck

A

The particle will execute SHM

B

The time period of oscillations will be `2pisqrt(m/k(`

C

the amplitude of oscillations will be `(m^(2)a_(0)^(2))`

D

The energy of oscillatioins will be `(m^(2)a_(0)^(2))/k`

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