Laws of MotionHard
Question
In the figure shown all the surface are smooth. All the blocks A, B and C are movable X-axis is horizontal and y-axis vertical as shown. Just after the system is released from the position as shown.
Options
A.Acceleration of ′A′ relative to ground is in negative y-direction
B.Acceleration of ′A′ relative to B is in positive x-direction
C.The horizontal acceleration of ′B′ relative to ground is in negative x-direction.
D.The acceleration of ′B′ relative to ground directed along the inclined surface of ′C′ is greater than g sin θ.
Solution
There is no horizontal force on block A, therefore it does not move in x-directing, whereas there is net downward force (mg − N) is acting on it, making its acceleration along negative y-direction.
Block B moves downward as well as in negative x-direction. Downward acceleration of A and B will be equal due to constrain, thus w.r.t. B, A moves in positive x-direction.
Due to the component of normal exerted by C on B, it moves in negative x-direction.
Block B moves downward as well as in negative x-direction. Downward acceleration of A and B will be equal due to constrain, thus w.r.t. B, A moves in positive x-direction.
Due to the component of normal exerted by C on B, it moves in negative x-direction.
Create a free account to view solution
View Solution FreeMore Laws of Motion Questions
The system is pushed by a force F as shown in figure. All surface are smooth are smooth except between B ans C. Friction...A particle is resting on a smooth horizontal floor. At t = 0 , a horizontal force starts acting on it. Magnitude of the ...Same spring is attached with 2kg, 3kg, and 1kg blocks in three different cases as shown in figure . If X1, X2 , and X3 b...A block of mass of 10 kg lies on a rough inclined plane of inclination θ = sin-1 with the horizontal when a force o...A force produces an acceleration of 4 ms-2 in a body of mass m1 and the same force produces an acceleration of 6 ms-2 in...