A tree trunk is approximated by a circular cylinder of height 150 meters and diameter 3 meters.

• A tree trunk is approximated by a circular cylinder of height 150 meters and diameter 3 meters.
• The tree is growing taller at a rate of 4 meters per year and the diameter is increasing at a rate of 1 cm per year.
• The density of the wood is 2000 Kg per cubic meter.

How quickly is the mass of the tree increasing (Kg per Year)?