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If the body is moving with uniform speed no force acting on it Is it true or false?
Wiki User
∙ 11y ago
If Newtonian physics are taken to apply, then I believe that F=ma can be taken to apply in all cases and therefore if a ( acceleration ) is zero it must follow that there is no NETT Force applied to the object of mass m.
The key point here is NETT ... and so I believe that the statement that there is 'no Force applied' as an english-language term is incorrect. It is often the case that two or more balancing forces may apply . These may cancel each other out.
This happens more often than may seem the case at first thought, as in an accelerating aircraft. The aircraft may accelerate until the drag caused by pushing through the air, trying to slow the aircraft , exactly balances the force ( thrust ) from the engines, resulting in a settled and stable speed. This stable speed denotes zero acceleration by definition.
Wiki User
∙ 11y ago
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What net force is needed to maintain a 1000 kg in uniform motion for 30 minutes without friction?
Uniform motion is what happens in the absence of any net force, so force isn't needed to maintain uniform motion. But in our everyday experience on Earth, we always need to supply force in order to keep something moving, only because there are always forces acting to stop it, and we have to counteract them. In the case of your 1,000-kg car, we'd have to know what forces are working against it ... wind, road friction, air resistance, wheel-bearing friction, etc. ... and then we'll know how much force we have to supply to cancel those out. Whatever the answer is, it'll be a continuous thing. The length of time will be irrelevant.
What is the net electrostatic force acting on a charged particle located inside a shell of uniform charge?
That depends on the shape of the shell. If it's spherical, then the force is zero.
If a body is moving with constant velocity is it moving with constant acceleration?
An object moves with constant velocity when there is no net force acting upon it. If there are no forces acting on an object, or if the forces acting on it "cancel out" leaving a net force of zero acting on the object, it will have zero acceleration. With a zero acceleration, the velocity of the object will be constant.
How can you tell from the path of the ball that there is another force acting on the ball other than the kicking force?
Inthe kicking force, kinetic energy is acting on the ball together with Gravitational Potential Energy. Whereas the part where aother force is acting on iit while the ball is not moving is alsoocontrolled by gravitaitional potential energy.
What happens if the sum of all the forces acting on a moving object is zero?
Then the object will not accelerate (if it is stationary, then it will remain stationary, if it is already moving it will continue to move at the same velocity until a force begins to act on it).
Since an object moving in uniform circular motion keeps a constant speed there is no force necessary to keep it in motion?
false
Since an object moving in uniform circular moyton keeps a constant speed there is no force necessary to keep it in motion?
False (apex)
What is force acting on a body with uniform motion?
A body in uniform motion has no net force acting on it. That means that either there are no forces at all, or else that all the forces acting on it add up to zero.
What force is acting on a body moving with uniform speed on a perfectly smooth road?
1) There are always frictional forces, which by themselves would slow the car down. 2) Since we are assuming that the car is moving at a uniform speed, there must be another force to compensate for the friction, and in the opposite direction (pulling the car forward). This force is related to the effort done by the engine.
Is an object as 0 net force acting on it then was could you say about its motion?
You could say that its motion is uniform, meaning that its speed is constant,and that it's moving in a straight line.
What force is acting on a ball when it is not moving?
Gravity
Objects at rest or in uniform motion have what acting on them?
zero net force
What is the upward force acting when a vehicle is moving?
upthrust
Does the centripetal force acting on an object in uniform circular motion do work on the object?
No
Why there must be an unbalanced force acting if an object is moving in a circle at constant speed?
If an unbalanced force was not acting upon it, it wouldn't be moving in a circle.An object with no unbalanced force will either not be moving, or be moving in a straight line due to Isaac Newtons 1st law of motion.
Cases when there is displacement but no force is applied?
When an object gets displaced in the absence of force acting on it, it must have already been moving? In the past a force acted on it and now the force is no longer acting on it. Like pushing on a toy car and letting go. The car continues to roll after you let go.
What is the origin of centripetal force?
Centripetal force is the resultant force acting towards the centre of orbit of an object undergoing uniform circular motion.
