MHT CET202619 April 2026Evening ShiftPhysicsOscillationsActual
A spring force constant 180 N/m is loaded with a mass 0.2 kg. The amplitude of oscillations is 4 cm. When mass comes to equilibrium position, its velocity is
Options
- A0.012 m/s
- B0.12 m/s
- C1.2 m/s
- D12 m/s
Correct answer
C. 1.2 m/s
Step-by-step solution
Given k = 180 N/m, m = 0.2 kg, and A = 4 cm = 0.04 m. The angular frequency of the spring-mass system is given by: = k m Substituting the given values: = 180 0.2 = 900 = 30 rad/s The velocity of the mass at the equilibrium position is its maximum velocity, which is given by: v_ max = A v_ max = 0.04 30 = 1.2 m/s Answer: 1.2 m/s