Answer:
Given data:
1) mass=45kg
2) g=9.8 m/s^2
Formula:
force=mass*accelaration
f=m*a
here ,
f=m*g
To find force:
f=45*9.8
F=441N
The force acting on the boy by the gravitational force is 441N or force of boy on the floor.
The upward force has same magnitude and different direction as the force by boy(Newton 3rd law of motion)
Therefore,
The upward force acting in the boy's feet= -441N
Because your feet are not accelerating, the force exerted by the floor upon your feet must be exactly the same as the force exerted by your feet on the floor. If you are standing, the amount of force exerted by your feet, and thus the amount of force exerted by the floor, is equivalent to your weight.
Yes, according to Newton's third law of motion, the floor exerts an equal and opposite force against your feet when you stand on it. This upward force is what supports your weight and prevents you from falling.
The force is called normal force. It is a reactionary force exerted by a surface to support the weight of an object resting on it. In the context of standing on a floor, the normal force from the floor acts in the upward direction to balance the downward force due to gravity acting on the person.
Yes, the force exerted by the floor on our feet is equal to the force that our feet exerted on the floor, or it just depends on your weight, If you are heavier than the normal. When you stand, the longer the time you stand, the more pain you feel on your feet. And we can't be move upward by the force that the floor exerted on our feet because of the force of our weight that keeps us on the ground, and also because of gravity.
Yes, the floor exerts an upward force on your feet in response to the gravitational force pulling you down. This force is known as the normal force and it helps to support your weight and keep you from falling through the floor.
Because your feet are not accelerating, the force exerted by the floor upon your feet must be exactly the same as the force exerted by your feet on the floor. If you are standing, the amount of force exerted by your feet, and thus the amount of force exerted by the floor, is equivalent to your weight.
Yes, when standing on a floor, the floor exerts an upward force on your feet equal to the force of gravity acting on your body. This force prevents you from sinking through the floor or falling. You are not moved upward by this force because your body weight is equal and opposite to the force exerted by the floor, resulting in equilibrium.
Yes, according to Newton's third law of motion, the floor exerts an equal and opposite force against your feet when you stand on it. This upward force is what supports your weight and prevents you from falling.
The force is called normal force. It is a reactionary force exerted by a surface to support the weight of an object resting on it. In the context of standing on a floor, the normal force from the floor acts in the upward direction to balance the downward force due to gravity acting on the person.
Yes, the force exerted by the floor on our feet is equal to the force that our feet exerted on the floor, or it just depends on your weight, If you are heavier than the normal. When you stand, the longer the time you stand, the more pain you feel on your feet. And we can't be move upward by the force that the floor exerted on our feet because of the force of our weight that keeps us on the ground, and also because of gravity.
Yes, the floor exerts an upward force on your feet in response to the gravitational force pulling you down. This force is known as the normal force and it helps to support your weight and keep you from falling through the floor.
Any upward force works against gravity,since they act in opposite directions.
When standing on the ground, the Earth exerts a force equal to your weight in the downward direction (gravitational force) and you exert an equal force in the upward direction on the Earth (reaction force) as per Newton's Third Law of Motion.
The upward force exerted on you while standing on the ground is equal to your weight, as determined by the force of gravity pulling you toward the Earth. This force does not lift you up because it is balanced by the force exerted by the ground pushing back on you (normal force), keeping you in equilibrium and preventing you from accelerating upward.
The floor exerts an upward force of 200N on the woman, which is equal in magnitude to her weight to keep her stationary. This force is known as the normal force, which acts in the opposite direction to the force of gravity.
on tiptoe, because the force acts over less area
The upward force of air against a moving object is called lift. It is generated due to the pressure difference between the top and bottom surfaces of the object, creating enough force to lift the object against gravity. This is essential for the flight of aircraft and other flying objects.