Write down the de of this damped harmonic oscillator.

Explanation:

The spring mass equation for the damped oscillation will be,

Here, -bv is the damping term used in this b is damping constant, k is spring constant, x is elongation in the spring, F is the force.

Therefore the differential equation for the damped harmonic oscillator is,

because growing process had stoped after 4-5 year

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg