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.
The minimum upthrust force needed to make an object float is equal to the weight of the object. In this case, the minimum upthrust force needed to make an object weighing 1600 newtons float is also 1600 newtons.
your weight
495 n
A minimum of 1.667 newtons.
The net force applied downward to the ground would be 495 newtons (450 N from your weight + 45 N from the backpack). This is because weight is a force that acts downward due to gravity, so the forces from your weight and the backpack both contribute to the total downward force.
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).
Weight is a measure of the gravitational pull for a mass , such that a mass of 1 Kg is having a weight of 10 Newton . So weight is a downward force measured in Newtons . Weight ( in N ) = Mass ( in Kg ) × Gravity ( usually 10N/Kg )
Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.Force is measured in Newtons. Weight is a force, therefore it is also measured in Newtons.
9.8 newtons, down
45.2 newtons
(weight) force = newtons, 1 kilogram force = 9.80665 newtons