Recent content by GatorJ

  1. G

    Finding Phase Constant for Harmonic Oscillator

    Homework Statement What is the phase constant (from 0 to 2π rad) for the harmonic oscillator with the velocity function v(t) given in Fig. 15-30 if the position function x(t) has the form x = xmcos(ωt + φ)? The vertical axis scale is set by vs = 7.50 cm/s...
  2. G

    Impulse of a falling ball under gravity onto a solid surface

    J=.5[9.8-(-19.6)]=14.7 kg m/s Wow that was a stupid mistake, thanks!
  3. G

    Impulse of a falling ball under gravity onto a solid surface

    Homework Statement A 0.5-kg rubber ball is dropped from rest a height of 19.6 m above the surface of the Earth. It strikes the sidewalk below and rebounds up to a maximum height of 4.9 m. What is the magnitude of the impulse due to the collision with the sidewalk? Homework Equations...