A block attached to a horizontal ideal spring is observed from a frame accelerating uniformly along the spring direction. Which statements are correct?
Select all that apply

Question

A block attached to a horizontal ideal spring is observed from a frame accelerating uniformly along the spring direction. Which statements are correct?

G1 Physics · Accepted Answer

In the accelerating frame, a constant pseudo-force ma acts on the block. The new equilibrium satisfies kx₀ = ma, so x₀ = ma/k. For displacement y from the new equilibrium, mÿ = −ky. Hence ω = √(k/m). The pseudo-force is constant and does not alter k. Therefore all four statements are correct.