questions about the problem-halving the gravitational force of the earth
Terrestrial athletes competing in the Olympics on an alien planet having gravitational force half that of Earth would perform significantly differently in some disciplines from those on Earth. Which of the following statements about performance on the alien planet is NOT correct?
A) In the 200-meter backstroke, the time marked would be significantly higher
B) In pole vaulting, the height achieved would be significantly greater
C) In the hammer throw, the distance achieved would be significantly greater
D) In weightlifting, one could lift barbells of significantly greater mass
E) In a bicycle time trial, the time marked would be significantly less
Could someone explain this problem and also the other wrong choices?
I’m really struggling with it. ........
Thank you!!