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There are 3 (I am doing physics IGCSE and my paper says state the 3 forces acting on a sinking anchor), but I only know one, upthrust!
1.a buoyant force acting on the body upwards due to air . 2.the weight of body acting downwards . this two forces acts.....
Two forces acting in the same direction cause the body to speed up (accelerate) if the forces are acting in opposite directions, subtract one from the other. The difference is the net force on the body and will be the direction in which it accelerates. Obviously, if they're the same size and opposite in direction, providing the body is rigid (it doesn't deform, in other words), the stat of motion of the body will stay the same (either at rest or moving at a steady speed in a straight line).
-- the object's mass -- the net force acting on it
The object will be in the state of equilibrium unless it is affected by another unbalanced force.Unbalance force make object move or stop by making more impact than the forces already on the object.For example there are several forces acting on the object even when it seems to be at rest.But only thing is that the resultant of all the forces is zero.So any force that can disturb the equilibrium can affect the equilibrium.
There are 3 (I am doing physics IGCSE and my paper says state the 3 forces acting on a sinking anchor), but I only know one, upthrust!
1.a buoyant force acting on the body upwards due to air . 2.the weight of body acting downwards . this two forces acts.....
Well, apart from two forces acting on the same point, they can act at different points. Thus, even if you have forces of equal magnitude in opposite directions, the object can start to rotate.Thus, there are two conditions for an object to be in equilibrium:1. The sum of all forces is zero.2. The sum of all torques is zero.Torque is the term used for forces that can cause rotation.Well, apart from two forces acting on the same point, they can act at different points. Thus, even if you have forces of equal magnitude in opposite directions, the object can start to rotate.Thus, there are two conditions for an object to be in equilibrium:1. The sum of all forces is zero.2. The sum of all torques is zero.Torque is the term used for forces that can cause rotation.Well, apart from two forces acting on the same point, they can act at different points. Thus, even if you have forces of equal magnitude in opposite directions, the object can start to rotate.Thus, there are two conditions for an object to be in equilibrium:1. The sum of all forces is zero.2. The sum of all torques is zero.Torque is the term used for forces that can cause rotation.Well, apart from two forces acting on the same point, they can act at different points. Thus, even if you have forces of equal magnitude in opposite directions, the object can start to rotate.Thus, there are two conditions for an object to be in equilibrium:1. The sum of all forces is zero.2. The sum of all torques is zero.Torque is the term used for forces that can cause rotation.
If an object is at rest 2 forces are still acting on it (if done on a planet) gravity pushing the object down. And the up force which is the force exerted by ground upwards against the object. Gravity being the greater force keeps the object on the ground, but the upforce prevents the object from basically ploughing through the ground.
2 Forces are unbalanced when an object that is not moving starts moving or changes speed or direction. Balanced forces are the opposite they are where an object that is not moving stays still or an object that is moving stays at a constant pace.
Add forces 1 and 2 = 40N Magnitude of resultant = root[402+302] = 50N [Also, this is at an angle of 36.9 degrees to the 30N force]
Thrust & gravity.
Two forces acting in the same direction cause the body to speed up (accelerate) if the forces are acting in opposite directions, subtract one from the other. The difference is the net force on the body and will be the direction in which it accelerates. Obviously, if they're the same size and opposite in direction, providing the body is rigid (it doesn't deform, in other words), the stat of motion of the body will stay the same (either at rest or moving at a steady speed in a straight line).
when any object is not moving there is at least two forces acting on it.....there are actually probably more. think of a ball....if one force is "pushing" it from behind and another force of the same strength is "pushing" it in the other direction from the front....then the object can't move.
How do you determine the net force on an object? Decide which direction is positive motion. Motion is the opposite direction is negative The forces must in a straight line!! Add all the forces in straight line acting on the object. Example To the right is positive A 5 N force pushes a 10 Kg object to the right. A 2 N force pushes the same 10 Kg object to the left. The 5 N forces is positive and the 2N force is negative Net force = +5 N - 2 N = + 3 N To determine the acceleration use Newton's 2nd law of motion F = Mass * acceleration + 3 N = 10 Kg * a a = 10 Kg ÷ + 3 N a = +3 ⅓ m/s^2 The positive sign means the object is accelerating to the right!! If the forces are not linear, you must use vectors, but the net force in any direction is still the sum of the vectors in that direction.
-- the object's mass -- the net force acting on it
you jump 2 it or go through obstacles 2 get it