The amplitude of a damped oscillator decreases to 0.9 times its original magnitude in 5s

PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

The amplitude of a damped oscillator decreases to 0.9 times its original magnitude in 5s. In another 10s it will decrease to α\alpha times its original magnitude, where α\alpha equals (1) 0.7 (2) 0.81 (3) 0.729 (4) 0.6

Related theory

Browse the problem library