Question

A particle of mass 0.3 kg subject to a force `F=-kx` with `k=15N//m`. What will be its initial acceleration if it is released from a point 20cm away from the origin?
A. `3 m//s^(2)`
B. `5 m//s^(2)`
C. `10 m//s^(2)`
D. `15 m//s^(2)`

Answer 1

Correct Answer - C
`|F|=Kx`
`|ma|=Kx`
`|a|=(Kx)/(m)=(15xx0.2)/(0.3)`
`=10m//s^(2)`