question_answer

Consider the situation shown in figure. The elevator is going up with an acceleration of\[2.00m/{{s}^{2}}\]and the focal length of the mirror is 12.0 cm. The entire surfaces are smooth and the pulley is light. The mass-pulley system is released from rest (with respect to the elevator) at \[t=0\]when the distance of B from the mirror is\[42.0cm\]. Find the distacne (in cm) between the image of the block B and the mirror at\[t=0.200s\]. Take\[g=10m/{{s}^{2}}\].

Answer:

8.57