2, gravity & buoyancy.
2 forces act on a body when it is ... Weight&buoyant force
Archimedes' principle refers to an object floating in a liquid. In this case, there is the downward force of gravity on the object, and the "buoyant force" as upward force. This is quite unrelated to "free fall", which means that no other forces than gravity act on an object.
No, the law of applied forces does not state that a body's change in mass is proportional to the amount of force applied to it. The law of applied forces states that the force applied to a body is equal to the mass of the body multiplied by the acceleration of the body. So, if the acceleration of a body increases, the force applied to it will also increase, but the mass of the body will remain the same.
In most cases, when a body is at rest, there are two forces acting on it: the force of gravity pulling downward and the normal force pushing upward. These forces are equal and opposite, resulting in a balanced or net force of zero.
The result of unbalanced forces is a net force that can accelerate a body.
1) FORCE EXERTED BY THE BODY TOWARDS EARTH {WEIGHT} 2) FORCE EXERTED BY WATER ON THE BODY [DUE TO DISPLACED WATER] NOTE:- HERE THERE WILL BE NO VISCOUS FORCE
2 forces act on a body when it is ... Weight&buoyant force
gravitational force
If the resultant of all the forces acting on a body is zero, the forces are called balanced forces. 2 types of unbalanced forces are naet force and resultant force.
When the gravitational and drag forces on the object are equal, there is no net force acting on the object. This means that the body will not accelerate; it will not change it's velocity.In order for the body to slow down to "floating speed", the drag force would have to be greater than the gravitational force. Drag force is dependent on velocity though, so the greater the velocity the greater the drag. Since the body is not accelerating at terminal velocity, it won't increase it's velocity, and therefore the drag force on it will not increase.(This is all assuming that is a rigid body in an atmosphere with a more or less uniform density, such as a block falling from an airplane.)
Archimedes' principle refers to an object floating in a liquid. In this case, there is the downward force of gravity on the object, and the "buoyant force" as upward force. This is quite unrelated to "free fall", which means that no other forces than gravity act on an object.
The motion in a body depends on the the balanced or unbalanced forces acting on it. If the sum of the forces is 0 then it is a balanced force and produces no motion if the sum of the forces isn't 0 then it is unbalanced force. The body will move in the direction in which the force is applied. That's about it
Force is an external effort and If the resultant of all force acting on a body is zero, then the forces are known as balanced force . Balanced forces do not change the speed.
No, the law of applied forces does not state that a body's change in mass is proportional to the amount of force applied to it. The law of applied forces states that the force applied to a body is equal to the mass of the body multiplied by the acceleration of the body. So, if the acceleration of a body increases, the force applied to it will also increase, but the mass of the body will remain the same.
The motion in a body depends on the the balanced or unbalanced forces acting on it. If the sum of the forces is 0 then it is a balanced force and produces no motion if the sum of the forces isn't 0 then it is unbalanced force. The body will move in the direction in which the force is applied. That's about it
Force is an external effort and If the resultant of all force acting on a body is zero, then the forces are known as balanced force . Balanced forces do not change the speed.
In most cases, when a body is at rest, there are two forces acting on it: the force of gravity pulling downward and the normal force pushing upward. These forces are equal and opposite, resulting in a balanced or net force of zero.