Question

the ball rolls down the hill.​

Answer 1

Explanation:

so what's the question pls explain bcz ball roll down the hill due to the slope of the hill

Answer 2

Answer:

The other answers ignore the energy associated with the rotation. For a solid uniform sphere (and you need to know that this is so), the total kinetic energy is

0.5mv^2 + 0.5I(omega)^2 (where I= rotational inertia = 0.4mR^2, and omega = v/R)

0.5mv^2 + 0.2mv^2 = 25

1.4v^2 = 25

v = 4.22 m/s

v is the velocity of the center of mass, of course.