You need at least enough speed to roatate you hips back in a tuck posion, and enough height so that you will not fall back on your head! :p
I can! I do gymnastics and i am very good at it! I can do a backtuck! As long as you practice and take in precaustions.
yes it is
Not at all, if anything that is an advantage. When you do a backtuck you have to be off the ground, so if your small it takes more effort then if you are tall.
preferaby a 126kb speed
It may help you get a feel for the basic back tuck positioning, but it won't really help you master it on the ground. Doing it on a trampoline first will help you a lot more.
a freakin bunch
2.1 liters
F stands for forward speed. = stands for how much forward speed is needed. M stands for mass multiplied with A, which stands for accecleration
To calculate the time needed, we use the formula: time = distance/speed. So, for a 715 km journey at an average speed of 110 km/h, the time needed would be 715 km / 110 km/h = 6.5 hours.
Four times as much. The relevant formulae are F = ma, and a = v2/r.
Force
The two quantities needed to describe the speed of a moving object are distance traveled and time taken to cover that distance. Speed is calculated by dividing the distance by the time.