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You should primarily use your legs to lift off the ground. Engage your leg muscles, keep your back straight, and lift using the strength of your legs to prevent injury and maintain good lifting form.
Legs
The distance the aircraft travels on the ground before lifting off, or the same when landing.
Physics.
proper lifting techniques such as bending your knees, keeping your back straight, and using the strength of your legs to lift instead of your back. Additionally, it is important to keep the object close to your body while lifting and to avoid twisting your body while carrying the object.
newton's third law
This is true
newton's second law
It contracts
Pushing a door open. Lifting a weight off the ground. Throwing a ball.
It would be good, if you keep lifting your feet off the ground.