Question

5m
Two blocks having masses 8 kg and 16 kg are connected to the
two ends of a light spring. The system is placed on a
smooth horizontal floor. An inextensible string also
connects B with celling as shown in figure at the initial
moment. Initially the spring has its natural length. A
constant horizontal force F is applied to the heavier
block as shown. The maximum possible value of F so
that lighter block doesn't loose contact with ground, is 6n
on. Find 'n'.​

Answer 1

Explanation:

Velocity of center of mass Vcm = m1v1 + m2v2m1 + m2 = 2 × 5 + 3 × ( - 5)5 = 10 - 155 = - 1m/s Velocity of 2kg mass in frame of center of mass = 5 - ...