Question: Mass m = 100 kg is hung on a spring of stiffness 10 kN/m. It is pulled down 50 mm below its stati...

mass m = 100 kg is hung on a spring of stiffness 10 kN/m. It is pulled down 50 mm below its

static equilibrium position and released. There is a frictional resistance which is proportional to the

velocity and is 360 N when the velocity is 1 m/s. (1) write down the equation of motion and find its

solution; (2) calculate the time which elapses and the distance which the body moves from the instant

release until it is again at rest at the highest part of its travel.