Q. Two blocks of masses m and M are placed on a horizontal frictionless table connected by light spring as shown in the figure . Mass M is pulled to the right with a force F. If the acceleration of mass m is a ,then the acceleration of mass M will be
(a) ((F-ma))/M
(b) ((F + ma))/M
(c) F/M
(d) am/M
Ans: (a)