Laws of MotionHard
Question
A 50 kg person stands on a 25 kg platform. He pulls mass less rope which is attached to the platform via the frictionless, massless pulleys as shown in the fig. The platform moves upwards at a steady velocity if the force with which the person pulls the rope is
Options
A.500N
B.250N
C.25N
D.50N
Solution
(M + m)g = 3F
(50 + 25)g = 3F
F = 250 N
Create a free account to view solution
View Solution FreeMore Laws of Motion Questions
Three blocks A, B and C of masses 4 kg, 2 kg and 1 kg respectively, are in contact on a frictionless surface, as shown. ...System is shown in the figure and man is pulling the rope from both sides with constant speed ′u′. Then the ...When a constant force is applied to a body, it moves with uniform :-...As show in figure, the block rests on a table at distance from the edge while the right block is kept at the same level ...When a body is in equilibrium :-...