Manipal MET2011PhysicsWork, Power and Energy
The force constant of weightless spring is 16 ~N / m . A body of mass 1.0 kg suspended from it is pulled down through 5 cm and then released. The maximum kinetic energy of the system (spring + body) will be
Options
- A2 10⁻² ~J
- B4 10⁻² ~J
- C8 10⁻² ~J
- D16 10⁻² ~J
Correct answer
A. 2 10⁻² ~J
Step-by-step solution
Maximum KE of the system = Maximum PE of the system aligned & = 1 2 k x^2 & = 1 2 16 (5 10⁻² )^2 & =2 10⁻² ~J aligned