A spring has a spring constant of 1.75 kN/m. What is the magnitude of the force (in newtons) required to stretch the spring by 80 cm?
A force of 1.5 N is applied to a spring which stretches it 30 micrometers. What is the spring constant of the spring (in N/m)?
A tractor is trying to pull a 1 tonne trailer with a spring in the connection between them. The spring has a spring constant of 0.125 MN/m. The spring stretches by 80 mm. What is the acceleration of the tractor (in m/s^2)?
A 400 g block is resting on a horizontal frictionless surface that is attached to a horizontal spring with a spring constant of 0.25 kN/m. The block is pushed parallel to the spring axis and is given an initial speed of 20 m/s, while the spring is initially unstrained. What is the amplitude of the resulting simple harmonic motion (in m)?
