As shown in the figure, the hammer, shot put, discus and javelin in sports are all the movements of throwing objects obliquely upward A. The kinetic energy of the object increases all the time, and the gravitational potential energy decreases all the time. B. the kinetic energy of the object decreases all the time, and the gravitational potential energy increases all the time. C. The kinetic energy of the object decreases first and then increases, and the gravitational potential energy increases first and then decreases. D. the kinetic energy of the object increases first and then decreases, and the gravitational potential energy decreases first and then increases

As shown in the figure, the hammer, shot put, discus and javelin in sports are all the movements of throwing objects obliquely upward A. The kinetic energy of the object increases all the time, and the gravitational potential energy decreases all the time. B. the kinetic energy of the object decreases all the time, and the gravitational potential energy increases all the time. C. The kinetic energy of the object decreases first and then increases, and the gravitational potential energy increases first and then decreases. D. the kinetic energy of the object increases first and then decreases, and the gravitational potential energy decreases first and then increases

When the object is thrown up obliquely, the instantaneous velocity and kinetic energy of the object are the maximum. In the process of rising, the kinetic energy is gradually transformed into gravitational potential energy, and in the process from the highest point to the landing, the gravitational potential energy is gradually transformed into kinetic energy. Therefore, in the whole process, the potential energy increases first and then decreases, and the kinetic energy decreases first and then increases