A solid uniform ball with a mass of 125 g is rolling without slipping along the horizontal surface of a table with a speed of 4.5 m/s when it rolls off the edge and falls towards the floor, 1.1 m below. What is the rotational kinetic energy of the ball just before it hits the floor?
A) 1.1 J
B) 0.73 J
C) 2.6 J
D) 0.51 J
E) This question cannot be answered without knowing the radius of the ball.

Question

A solid uniform ball with a mass of  125 g is rolling without slipping along the horizontal surface of a table with a speed of  4.5 m/s when it rolls off the edge and falls towards the floor,  1.1 m below. What is the rotational kinetic energy of the ball just before it hits the floor?
A)  1.1 J
B)  0.73 J
C)  2.6 J
D)  0.51 J
E) This question cannot be answered without knowing the radius of the ball.

Quizplus · Accepted Answer

The Answer of A solid uniform ball with a mass of  125 g is rolling without slipping along the horizontal surface of a table with a speed of  4.5 m/s when it rolls off the edge and falls towards the floor,  1.1 m below. What is the rotational kinetic energy of the ball just before it hits the floor?
A)  1.1 J
B)  0.73 J
C)  2.6 J
D)  0.51 J
E) This question cannot be answered without knowing the radius of the ball.

A Solid Uniform Ball with a Mass of 125