A block of weight 100N is pushed by a force F on a horizontal rough plane moves with an acceleration 1 m//s^(2), when force is doubled its acceleration becomes 10m//s^(2). The coefficient of friction is _______ (g=10 ms^(-2))

A block of weight 100N is pushed by a force F on a horizontal rough pl

1.	A block of weight 100N is pushed by a force F on a horizontal rough plane moves with an acceleration 1 m//s^(2), when force is doubled its acceleration becomes 10m//s^(2). The coefficient of friction is _______ (g=10 ms^(-2))
Answer» `0.2` `0.4` `0.6` `0.8` ANSWER :D