quiz10

  1. A solid spherical marble weighs 1.47N. It rolls down a ramp without slipping starting at rest. After rolling to the bottom of the ramp which is 20cm below the initial height what is the speed of the marble?
    a) 0.200m/s
    b) 0.447m/s
    c) 1.67m/s
    d) 2.34m/s
    e) 6.64m/s
    No answer given yet
  2. A satellite in deep space has a moment of inertia of 4000 (kg m^2)when its solar panels are initially in. The satellite spins through one full revolution every second. After putting out the solar panels the satellite takes 1.2 seconds to make a full revolution. What is the angular momentum of the satellite and the moment of intertia with the solar panels pulled out?
    a) 4000 kg m^2/s, 3333 kg m^2
    b) 4800 kg m^2/s, 4800 kg m^2
    c) 2.51E4 kg m^2/s, 2.10E4 kg m^2
    d) 3.02E4 kg m^2/s, 4000 kg m^2
    e) 2.51E4 kg m^2/s, 4800 kg m^2
    No answer given yet
  3. A 0.500kg mass is at the end of a spring with spring constant of 10.0 N/m. The mass is pulled 0.20m from the equilibrium position and released. Give the total energy, the maximum speed, and the speed when the mass passes through x=0.15m. Give the three answers in the same order as asked.
    a) 0.200J, 0.894m/s, 0.592m/s
    b) 1.00J, 0.800m/s, 0.529m/s
    c) 0.200J, 0.800m/s, 1.15 m/s
    d) 1.00J, 2.00m/s, 1.50 m/s
    e) 0.200J, 1.60m/s, 0.800m/s
    No answer given yet