A horizontal spring of unknown stiffness is fixed at one end to a rigid wall
PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
A horizontal spring of unknown stiffness is fixed at one end to a rigid wall. The other end is attached to a block that is free to slide on a frictionless table. When the block is pulled slightly and released, it completes 20 oscillations in 25s.
(i) Determine the frequency and time period of the motion.
(ii) If the spring constant is measured separately to be 180Nm−1, find the mass of the block.
(iii) The amplitude of oscillation is 4.0cm. Calculate the maximum speed of the block during its motion.