A particle of mass 0.3 kg is subjected to a force`F =- kx` with `k = 15 N//m`. What will be its initial acceleration if it is released from a point 20 cm away from the origin?

Options

A. `3 m//s^(2)`
B. `15 m//s^(2)`
C. `5 m//s^(2)`
D. `10 m//s^(2)`

Answer

d

Explanation

As per question restoring force on the particle is
`f = 15 xx 0.2 = 3N`
So, acceleration `= (f)/(m) =(3)/(0.3)=10ms//s^(2)`
Hence choice is (d)