In which one of the following situations will there be an increase in kinetic en
ID: 2244926 • Letter: I
Question
In which one of the following situations will there be an increase in kinetic energy? a. During the second 0.1 second of flight of an arrow shot directly upward at high speed. b. A ball starts from rest and freely rolls downhill. c. A box is pulled across a rough floor at constant speed. d. A satellite travels in a circular orbit around the earth at fixed altitude. e. A stone at the end of a string is whirled in a horizontal circle at constant speed. In which one of the following situations will there be an increase in kinetic energy? In which one of the following situations will there be an increase in kinetic energy? During the second 0.1 second of flight of an arrow shot directly upward at high speed. A ball starts from rest and freely rolls downhill. A box is pulled across a rough floor at constant speed. A satellite travels in a circular orbit around the earth at fixed altitude. A stone at the end of a string is whirled in a horizontal circle at constant speed. a. During the second 0.1 second of flight of an arrow shot directly upward at high speed. b. A ball starts from rest and freely rolls downhill. c. A box is pulled across a rough floor at constant speed. d. A satellite travels in a circular orbit around the earth at fixed altitude. e. A stone at the end of a string is whirled in a horizontal circle at constant speed.Explanation / Answer
OPTION B, beacuse the speed is increasing only in this case, all aother cases, the speed is constant which means kinetic energy is also constant