Laws of MotionHard
Question
A horizontal force of 1 N is needed to keep a block of mass 0.25 kg sliding on a horizontal surface with a constant speed. The coefficient of sliding friction must be : [take g = 10 ms-2]
Options
A.0.33
B.0.40
C.0.50
D.0.25
More Laws of Motion Questions
A block is sliding down on an inclined plane of slope $\theta$ and at an instant $t = 0$ this block is given an upward m...Two block A and B of masses 5 kg. and 3 kg. respectively rest on smooth horizontal surface with B over A. The coefficien...A plate of mass ′M′ is placed on a horizontal frictionless surface and the body of mass′m′ is pl...Objects A and B each of mass m are connected by light inextensible cord. They are constrained to move on a frictionless ...An object of mass 150 kg. is to be lowered with the help of a string whose breaking strength is 100 kg.-wt. What should ...