A speck of negligible mass begins to fall and gathers water vapour at a constant rate beta. Calculate its acceleraton and its mass when it falls 2.45 m.

A speck of negligible mass begins to fall and gathers water vapour at

1.	A speck of negligible mass begins to fall and gathers water vapour at a constant rate beta. Calculate its acceleraton and its mass when it falls 2.45 m.
Answer» ANSWER :`(9.8)/( 4 XX 2.45)t^(2) =1 ( or) t = 1 ` sec