A trolley filled with sand moves on a smooth horizontal surface with a velocityV _(0). A smalll hole is made at the base of if from which sand is leaking out vertically down a constant rate. As the sand leaks out (a) the velocity of the trolley remains constant (b) the velocity of the trolley increases (c ) the velocit of trolley decreases (d) the momentum of trolley + leaked out sand is conserved

A trolley filled with sand moves on a smooth horizontal surface with a

1.	A trolley filled with sand moves on a smooth horizontal surface with a velocityV _(0). A smalll hole is made at the base of if from which sand is leaking out vertically down a constant rate. As the sand leaks out (a) the velocity of the trolley remains constant (b) the velocity of the trolley increases (c ) the velocit of trolley decreases (d) the momentum of trolley + leaked out sand is conserved
Answer» a & b are correct C & d are correct a & c are correct b & d are correct Answer :D