Q1. A 0.120 kg block on a horizontal frictionless surface is attached to the spring whose force constant is 572 N/m. The block is pulled from its equilibrium position at x = 0 m to a displacement x = +0.080 m and is released from rest. The block after that executes simple harmonic motion along the x-axis (horizontal). The displacement of the block at time t = 0.20 s is closest to: 0.01m, -0.01m, 0.08m, -0.08m, 0.1m
Q2. A dog pulls on the pillow with a force of 12 N at an angle of 52° above the horizontal. Find the x and y components of this force.