Laws of MotionHard
Question
A block A of mass m is placed over a plank B of mass 2m. Plank B is plank over a smooth horizontal surface. The coefficient of friction between A and B is 0.5. Block A is give a velocity v0 towards right . Acceleration of B relative to A is


Options
A.
B.g
C.
D.zero
Solution
Acceleration of B,
aB =
P & D of block A w.r.t. B
aAB =
= μg + aB = 

aB =
P & D of block A w.r.t. B
aAB =

Create a free account to view solution
View Solution FreeMore Laws of Motion Questions
A given object takes n times as much time to slide down a 45o rough incline as it takes to slide down a perfectly smooth...A body of mass 40 g is moving with a constant velocity 2 cm/s on a horizontal frictionless table. The force on the body ...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...In the arrangement shown in fig. the ends P and Q of an unstretchable string move downwards with uniform speed U. Pulley...Which of the following statements is / are CORRECT for the figure shown....