Inertia, gravity, friction.
The forces acting on the bike is gravity, air resistance and friction.
forces that are active derr
when abody is thrown upward,how many forces act on it?what is the role of the force with which the body has been thrown upward? After a body is thrown upwards, you have gravity pulling it down and friction slowing it.
The bike that you should think of buying an active 9 year old is a 24-inch wheel bike.
Projectile motion as the football is thrown, forces as the football is thrown as well.
gravity
friction
ALOT!!
The best bike to buy for a nine year old active boy is a 24in-wheel bike with a 3-speed hub gear.
A moving bicycle or bike will not fall when the opposing forces are balanced.
If you're not speeding up, slowing down or turning - then forces are balanced.
Basketball needs forces so the ball is able to be thrown to the ring or another player.