An object moves with `5ms^(-1)` toward right while the mirror moves with `1ms^(-1)` toward the left as shown in Figure. Find the velocity of image.

Explanation

Take `rarr` as _ direction
`v_(i)-v_(m)=v_(m)-v_(0)`
`rarr v_(i)-(-1)=(-1) -5`
`therefore v_(i) =-7m//s`
`rarr 7 m//s` and direction towards left