If a trolley filled with sand is sliding downwards on a smooth inclined surface of inclination θ, then as the sand leaks out
A trolley filled with sand moves on a smooth horizontal surface with a velocity V0 . A small hole is made at the base of it from which sand is leaving out vertically down at constant rate. As the sand leaves out
As the sand leaves out
a. the velocity of the trolley remains constant
b. the velocity of the trolley increases
c. the velocity of the trolley decreases
d. the momentumof trolley + leakedout sand is conserved