b Identify the line with an arrow head representing the vertical distance h 1

B identify the line with an arrow head representing

This preview shows page 10 - 12 out of 12 pages.

(b) Identify the line with an arrow head representing the vertical distance h1traveled while onthe ramp. (c) Identify the line with an arrow head representing the vertical distance h2from the bottom ofthe ramp to the table. (d) Identify the line with an arrow head representing the horizontal distance dthe mass travelsafter leaving the ramp. A B C D E A B C D E A B C D E
Additional Materials Conservation of Mechanical Energy Appendix6.10/10 points | Previous AnswersThe Apollo Lunar Modulewas used to make the transition from the spacecraft to the Moon's surface andback. Consider a similar module for landing on the surface of Mars. Use conservation of mechanicalenergy to answer these questions.(a) As the lander is descending, if the pilot decides to shut down the engine when the lander isat a height of 2.6 m, (this may not be a safe height to shut down the engine) and the velocity ofthe lander (relative to the surface of the planet) is 1.9 m/s what will be velocity of the lander atimpact? Note: gon the surface of Mars is about 0.4 times that on the surface of the Earth. (b) In the case of the lunar module an impact velocity of 3.0 m/s or less was essential for a safelanding. Assuming this to be the case for the Mars lander as well, at what maximum heightcould the pilot shut down the engines to ensure a safe landing. Assume the velocity v0at thetime the engine is shut down is 1.9 m/s. Appendix7.5/5 points | Previous AnswersConsider the following objects of mass mrolling down an incline of height h(a) A hoop has a moment of inertia I= mr2. What is the equation for the velocity vhoopof thehoop at the bottom of the incline? (Use the following as necessary: m, h, r, and . g .) A B C D E
v hoop = (b) A solid cylinder has a moment of inertia What is the equation for the velocityvcylinderof the cylinder at the bottom of the incline? (Use the following as necessary: m, h, and g.) r , (c) We know that the velocity of the sphere at the bottom of the ramp is from whichwe can conclude that the mass of the sphere does not affect the velocity of the sphere. Which ofthe following statements help to explain why the equations for the velocity in the case of therolling cylinder and rolling hoop should be different from each other and from that of thesphere? (Select all that apply.) Additional Materials Conservation of Mechanical Energy Appendix 2

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture