Question

A block of mass m = 2.00 kg is attached to a spring of force constant k = 465 N/m as shown in the figure below. The block is pulled to a position xi = 4.70 cm to the right of equilibrium and released from rest. A spring labeled k has its left end attached to a wall and its right end attached to a block labeled m. The block is initially at a location labeled x = 0. It is then displaced to the right to a location labeled x = xi.

(a) Find the speed the block has as it passes through equilibrium if the horizontal surface is frictionless.

(b) Find the speed the block has as it passes through equilibrium (for the first time) if the coefficient of friction between block and surface is μk = 0.350.

Answer 1