That's not a good idea, by doing that you might cause more harm. To fix someones back first you need to ask yourself why it needs to be FIXED and what is causing the problem. Back pain can be caused by a variety of sources such as the bones, intervertebral discs, facet joints, ligaments, muscles, and viscera to name a few. Not knowing the real cause of the pain will increase the probabilities of injury, while increasing the back pain or stiffness.
I recommend that if someones back needs to be "fixed" then they should seek care from licensed health care professional such as a Chiropractor, Physical Therapist, Acupuncturist, or Orthopedist. I personally recommend Chiropractic as the first choice for evaluation and possible treatment Chiropractors are well trained for the treatment of back pain or any other spine complaint.
You can break a banjo by hitting it really hard.
Also i would run as fast as i can and don't look back!
To hit them really hard, as if hitting them with a sandbag
Not by yourself hitting the ball really hard.
If you hit them hard enough, yes you can
When a bullet bounces back after hitting a hard surface, it is called a ricochet. Ricochets can be unpredictable and dangerous, as the bullet's trajectory can change after hitting a surface.
Throw it straight up.
By hitting it really hard with a jackhammer.
The cast of Hard Hitting - 2009 includes: Sedina Balde as Zed
Alignment is not correct. The tires are leaning toward each other at the top. OR, you have Ball Joint / Tie Rod damage from hitting something really hard... but that would go back to Alignment Problems.
You become friends with female people by socially interacting with them without hitting on them. It's really not that hard.
Yes, you can by hitting it or knocking it really hard it might burst which means you won't be able to cry or stuff like that.