2014年10月27日 · The maximum "hang time" for a human who jumps in the air under his own power is said to be less than 1 second. This includes jumping on the spot, running jumps, hops, leaps, dives, and bounds. Javier Sotomayor (Cuba) is the current men's record holder with a jump of 2.45 m (8 ft 1⁄4 in) set in 1993.

2012年11月5日 · An exceptional vertical jump from rest would raise a person 0.8m off the ground. To do this, what constant force would a 70kg person have to exert against the ground? Assume that the person lowers himself by 0.2m prior to jumping and remains in a standing position while in the air. The answer is 3400N. Homework Equations aΔt=v2-v1 d= 1/2(v1 ...

2009年5月8日 · From approximately what maximum height could a 55 kg person jump and land rigidly upright on both feet without breaking his legs? The energy a human leg bone can absorb is 200 J. The person is 55 kg. Homework Equations mgy = 1/2mv^2 The Attempt at a Solution (55 kg) (9.8 m/s^2) y = 200 J y = 200 J/ 539 y = .37 m

2017年4月15日 · So to jump off the floor, the person has to do something to make the floor exert an upwards force of more than 160 lbs. Now you need Newton's third law, the one about equal and opposite forces: when the person exerts a force of more than 160 lbs on the floor, the floor will exert a force of more than 160 ls on the person, and the person will be ...

2022年12月15日 · Relating to Stratus' thread in this forum, I'm trying to figure out initial velocity of a jump in zero g. Lets start in 1g. In one g, a person might be able to jump 1m. From this, using : v^2 = u^2 - 2as, we can calc his initial u as 4.45m/s. Is …

2014年11月10日 · Thanks! I think I found more information. In an example problem, it uses 6.0 x 10^24 kg as Earth's mass. And Moon's as 7.35 x 10^22 kg. Will I use Earth's mass to find the m person? And then use that information to solve F moon on person on Moon's surface = G(m moon x m person)/r^2?

2017年6月16日 · I think it is not possible, my friend seems to think if you press hard enough on the atmosphere it will become dense enough to jump on. Insights Blog -- Browse All Articles -- Physics Articles Physics Tutorials Physics Guides Physics FAQ Math Articles Math Tutorials Math Guides Math FAQ Education Articles Education Guides Bio/Chem Articles ...

2020年2月15日 · Now this got me thinking about another player Rudy Gobert. Rudy has a 5 inches higher standing reach than dwight and only weighed in at 238lbs. Now i wonder therotically how high would Rudy be able to jump if he produce 1210lbs of force aswell? If you want to see the video just search dwight howard sport science

2012年5月24日 · An average person can reach a maximum height of about 60cm when jumping straight up from a crouched position. During the jump itself, the person's body from the knees up typically rises a distance of around 50cm. To keep the calculations simple and yet get a reasonable result, assume that the entire body rises this much during the jump.

2010年10月9日 · Ok, so I'm trying to understand the forces involved in jumping, more specifically, right before a person takes off (as in the part where they press into the ground). I know that the weight force is pushing the person down and that the normal force is bigger than the weight force to create a net force that points upwards.