495 n
495 n
The net force applied downward to the ground is the combination of your weight and the weight of the backpack, so it would be 450 N + 45 N = 495 N.
The net force applied downward to the ground is 450 newtons + W newtons. When standing still (not accelerating), the net force must be zero according to Newton's first law. This means the force pushing down must be balanced by the force pushing up (from the ground).
It is a vector quantity. It has both a magnitude and a direction.
When a 100 Newton upward force is subtracted from a 75 Newton downward force, the resultant force is 25 Newtons downward. If both forces act downward, their resultant force would be the sum of the forces, which is 100 + 75 = 175 Newtons downward.
495 n
It is 495 Newtons.
The net force applied downward to the ground is the combination of your weight and the weight of the backpack, so it would be 450 N + 45 N = 495 N.
The net force applied downward to the ground is 450 newtons + W newtons. When standing still (not accelerating), the net force must be zero according to Newton's first law. This means the force pushing down must be balanced by the force pushing up (from the ground).
It is a vector quantity. It has both a magnitude and a direction.
When a 100 Newton upward force is subtracted from a 75 Newton downward force, the resultant force is 25 Newtons downward. If both forces act downward, their resultant force would be the sum of the forces, which is 100 + 75 = 175 Newtons downward.
It weighs 49.3728 newtons. Trust me I got it right on my test.
Ten newtons downward, by definition.
newtons 1st law
No matter how much force you exert downward, it shall avail you naught. No downward force acting directly on the object can ever succeed in lifting it.
Newton's Third Law applies everywhere.
the 2nd one