You bend down and then you push up from your thighs.
they use their legs and feet and then they push off the ground
Yes.
+ to +- to -+ to +- to -
The force that pushes up on you when you jump vertically off the ground is called the normal force.
Derrick Rose can jump 48 in off the ground.
You are able to jump by using your feet to apply force to the ground and then using this force to allow you to lift off the ground.
bend your knees, and jump off the ground as high as you can
3 feet
When you jump, you push off the ground with your legs to propel yourself upwards. The upward force generated by the push allows you to leave the ground and jump into the air.
People occasionally jump off of it.
dont be scared!
Because sometimes the ground is soft enough to absorb their impact and leave them un hurt.