Two men each of mass 50 kg are standing on a horizontal plank of mass 100 kg. Both men jumps from plank simultaneously ….

Q: Two men each of mass 50 kg are standing on a horizontal plank of mass 100 kg. Both men jumps from plank simultaneously with acceleration 2 m/s2 , one in Eastward and other in Northward. The initial acceleration of plank is

(a) √2 m/s2 in South-West direction

(b) √2 m/s2 in North-East direction

(c) 2 m/s2 in South-West direction

(d) 1/√2 m/s2 in South-West direction

Ans: (a)