Current location - Health Preservation Learning Network - Healthy weight loss - In order to measure the jumping height of trampoline athletes, the research team designed the following methods: they installed pressure sensors on the elastic net of trampoline.
In order to measure the jumping height of trampoline athletes, the research team designed the following methods: they installed pressure sensors on the elastic net of trampoline.
As can be seen from the picture, the longest time an athlete is in the air is: t=6.9s-4.9s=2s.
According to the symmetry of vertical throwing action, the rising time is t 1 = t2 = 1s, and the maximum jumping height is h = 12gt2 1 = 5m. So C is right and A, B and D are wrong.