A car C of mass `m_(1)`, rests on a plank of mass `m_(2)`. The plank rests on a smooth floor. The string and pulley are ideal. If the car starts and moves towards the pulley with certain acceleration, choose the incorrect option:

Options

A. If `m_(1) gt m_(2)`, the string will remain under tension
B. If `m_(1) lt m_(2)`, the string will become slack
C. If `m_(1)=m_(2)`, the string will have no tension, and C and P will have accelerations of equal magnitudes
D. C and P will have acceleration of unequal magnitude if `m_(1) ge m_(2)`

Answer

D