Laws of MotionHard
Question
In the Figure, the pulley P moves to the right with a constant speed u. The downward speed of A is vA, and the speed of B to the right is vB.
Options
A.vB = vA
B.vB = u + vA
C.vB + u = vA
D.the two blocks have accelerations of the same magnitude
Solution
by string constrain
vA + u − vB = 0
or vB = u + vA
differentiating both side
aB = 0 + aA Ans.
Create a free account to view solution
View Solution FreeMore Laws of Motion Questions
Two block (A) 2 kg and (B) 5 kg rest one over the other on a smooth horizontal plane. The cofficient of static and dynam...Which of the following is not measured in the units of energy :-...A block of mass m = 2 kg is resting on a rough inclined plane of inclination 30o as show in figure. The coefficient of f...In the pulley system show in figure the movable pulleys, A, B , and C are of mass 1 kg each. D and E are fixed pulleys. ...A machine-gun fires a bullet of masses 40 gm with velocity 1,200 m/s. The man holding it can exert a maximum force of 14...