What is the net force on body if it sinks?

(iii) (a) The net force acting on the body when it sinks is the weight of the body itself. (b) The net force acting on the body when it floats is the upthrust due to the liquid.

What is the net force acting on the body?

Net force is the vector sum of forces acting on a particle or body. The net force is a single force that replaces the effect of the original forces on the particle’s motion. It gives the particle the same acceleration as all those actual forces together as described by Newton’s second law of motion.

What are the forces acting on a body immersed in a fluid?

The forces which act on a body when it is immersed in a liquid are a gravitational force (weight) and buoyant force. The upward force depends upon the density of the fluid.

Is the net force acting on a body is zero?

If the body is in uniform motion and the net external force on the body is zero then the body will continue its state of equal motion. The net force of the body is zero which does not mean that the body is not exerting force at all and hence the body is in equilibrium.

What are the two forces acting on the body when it is completely immersed inside a liquid draw a diagram to represent the direction of these forces acting on the body?

A body held completely immersed inside a liquid experiences two forces: (i) F1, the force due to gravity and (ii) F2, the buoyant force. Draw a diagram showing the direction of these forces acting on the body and state the conditions when the body will float or sink.

Which two forces act on the object when it is immersed in a liquid How does their magnitude determine that the object will float or sink in the liquid?

Answer: The two forces which are applied on an object, immersed in liquid are weight (W) of the object and buoyant force( B) of the liquid. If W=B then the object will float just below the surface of liquid.

What does net force mean?

The net force is the vector sum of all the forces that act upon an object. That is to say, the net force is the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel each other out.

When a net force acting on a system is zero then the system is said to be?

Explanation: When the net force acting on a system is zero then that system is called equilibrium.

Why the net force on an object is zero when the two forces acting on it in opposite directions are equal?

When two forces acting on a body are in opposite direction, the net force is the difference between two forces in the direction of larger force. Thus resultant will be zero if the two forces are equal in magnitude and opposite in direction.

Which of the following physicists explained the existence of buoyant force?

Archimedes was a Greek Scientist and a mathematician with sharp intelligence. He found out the value of pi (π) by numerical calculations. Archimedes Principle: When an object is partially or fully immersed in a fluid, a force of buoyancy acts on it in the upward direction.

What is net force give an example?

The total sum of forces acting on a body is known as net force. Eg. If the wheels of a car push it with a force of 5 newton and drag it 3 newton the net force is 3 newton.

What force causes an object to float or sink?

There is an upward force, or buoyant force, on any object in any fluid ( (Figure) ). If the buoyant force is greater than the object’s weight, the object rises to the surface and floats. If the buoyant force is less than the object’s weight, the object sinks.

What is the net upward force of buoyant force?

Buoyant force is the net upward force on any object in any fluid. If the buoyant force is greater than the object’s weight, the object will rise to the surface and float. If the buoyant force is less than the object’s weight, the object will sink.

What happens to buoyant force if the object is not in fluid?

If the object were not in the fluid, the space the object occupied would be filled by fluid having a weight This weight is supported by the surrounding fluid, so the buoyant force must equal the weight of the fluid displaced by the object. The buoyant force on an object equals the weight of the fluid it displaces.

What is the force that holds an object up?

Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object. with the clarifications that for a sunken object the volume of displaced fluid is the volume of the object, and for a floating object on a liquid, the weight of the displaced liquid is the weight of the object.