A ball starts from rest and rolls without slipping down a ramp with an initial height of 3 meters. Which of the following statements about the energy of the ball are true?
A. The total energy of the ball at the bottom of the ramp includes linear kinetic energy only.
B. The total energy of the ball at the bottom of the ramp includes rotational kinetic energy only.
C. The total energy of the ball at the bottom of the ramp includes both rotational and linear kinetic energy components.
D. The total energy of the ball at the bottom of the ramp includes rotational kinetic energy, linear kinetic energy, and gravitational potential energy.
Answer:A
A ball starts from rest and rolls without slipping down a ramp with an initial height of 3 meters. Which of the following statements about the energy of the ball are true?
A. The total energy of the ball at the bottom of the ramp includes linear kinetic energy only. B. The total energy of the ball at the bottom of the ramp includes rotational kinetic energy only. C. The total energy of the ball at the bottom of the ramp includes both rotational and linear kinetic energy components. D. The total energy of the ball at the bottom of the ramp includes rotational kinetic energy, linear kinetic energy, and gravitational potential energy.