Question #4444b
3 Answers
I found 224Joules
Explanation:
Kinetic energy is equal to:
Assuming there are no losses, the speed is constant = 8m/s
So,
Explanation:
If we also take into account the rotational kinetic energy due to the rolling motion, then we get :
where R is the radius of the solid sphere.
But since the linear and angular velocities may be related by the equation
KE =
Explanation:
The question phrasing implies frictionless motion, and NO dimensions of the mass are given, so shape is irrelevant (and also rotational motion).
Some equations posted omitted the "1/2" and are incorrect.