Question

blogs p and R starts from rest and moves to the right with the acceleration ap is equal to 12 cm per second and AR 33 M per second square feet is in seconds the time when blocked you again comes to rest is

Answer 1

Here, to ensure that the block Q is at rest, we will find the relation between the velocities of the blocks using the constraint concept.We arrive to a relation:V(p)-V(r)-V(q)=0...(i)We know, v(p)=6t^2, v(r)=3t (integrating the given values) We want v(q)=0Therefore, using eqn(i),6t^2=3tt=1/2