Anthony Pangestu
New member
This is the last problem I haven't solve yet... Please help me...
A hollow sphere of radius 0.15 m, with rotational inertia I= 0.040 kg.m2 about a line through the center of mass, rolls without slipping up a surface inclined at 30o to the horizontal. At a certain initial position, a sphere total kinetic energy is 20 J.
a. How much of this initial kinetic energy is rotational?
b. What is the speed of the center of mass of the sphere at the initial position?
c. What is the total kinetic energy of the sphere?
d. What is the speed of its center of mass after is has moved 1.0 m up along the incline from its initial position?
A hollow sphere of radius 0.15 m, with rotational inertia I= 0.040 kg.m2 about a line through the center of mass, rolls without slipping up a surface inclined at 30o to the horizontal. At a certain initial position, a sphere total kinetic energy is 20 J.
a. How much of this initial kinetic energy is rotational?
b. What is the speed of the center of mass of the sphere at the initial position?
c. What is the total kinetic energy of the sphere?
d. What is the speed of its center of mass after is has moved 1.0 m up along the incline from its initial position?