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Why is it that no work is done when the force and the displacement are perpendicular to each other?
When a force and displacement are perpendicular to each other, no work is done because the force is not acting in the same direction as the displacement. Work is defined as the product of force and displacement in the direction of the force, so when they are perpendicular, the force does not contribute to the displacement and no work is done.
Is there any point along the path of projectile where velocity and acceleration vectors are perpendicular to each other?
Using the term "trajectory" implies that the acceleration you are concerned about is due to gravity. Gravity will always be perpendicular to the surface. Unless the trajectory begins perpendicular to the surface, it will never change to become perpendicular and the velocity will never be in a direction parallel to the acceleration. If it starts perpendicular to the surface it will start and remain perpendicular. Of course if you have another force acting on the object - such as wind - the component of the velocity vector parallel to the ground could be reduced to zero and at that point the only remaining component of the velocity vector would be that perpendicular to the ground and parallel to the acceleration. Likewise if the object is being propelled by an engine or rocket, the trajectory could be parallel to the force any time the acceleration vector became parallel to the velocity vector.
When are velocity and acceleration perpendicular to each other?
Velocity and acceleration are perpendicular to each other when the magnitude of the acceleration is equal to the centripetal acceleration required for circular motion, and the direction of the acceleration is towards the center of the circular path while the velocity is tangent to the path. This occurs in uniform circular motion.
What happens when the thrust force is equal to the drag force?
When the thrust force is equal to the drag force, the object will maintain a constant velocity (assuming no other forces are acting on it). This state is known as dynamic equilibrium, where the forces are balanced and there is no acceleration.
When a particle move in a circle then angle between linear velocity and angular velocity?
The angle between the linear velocity and angular velocity of a particle moving in a circle is typically 90 degrees. This means that they are perpendicular to each other.
The force of gravity opposes what other force?
The force of gravity opposes acceleration away from the source of the gravity. This is expressed as "centrifugal force" or the perpendicular component of a tangential velocity. The balance between these keeps the planets in orbit around the Sun.
Why is it that no work is done when the force and the displacement are perpendicular to each other?
When a force and displacement are perpendicular to each other, no work is done because the force is not acting in the same direction as the displacement. Work is defined as the product of force and displacement in the direction of the force, so when they are perpendicular, the force does not contribute to the displacement and no work is done.
Is there any point along the path of projectile where velocity and acceleration vectors are perpendicular to each other?
Using the term "trajectory" implies that the acceleration you are concerned about is due to gravity. Gravity will always be perpendicular to the surface. Unless the trajectory begins perpendicular to the surface, it will never change to become perpendicular and the velocity will never be in a direction parallel to the acceleration. If it starts perpendicular to the surface it will start and remain perpendicular. Of course if you have another force acting on the object - such as wind - the component of the velocity vector parallel to the ground could be reduced to zero and at that point the only remaining component of the velocity vector would be that perpendicular to the ground and parallel to the acceleration. Likewise if the object is being propelled by an engine or rocket, the trajectory could be parallel to the force any time the acceleration vector became parallel to the velocity vector.
When are velocity and acceleration perpendicular to each other?
Velocity and acceleration are perpendicular to each other when the magnitude of the acceleration is equal to the centripetal acceleration required for circular motion, and the direction of the acceleration is towards the center of the circular path while the velocity is tangent to the path. This occurs in uniform circular motion.
What happens when the thrust force is equal to the drag force?
When the thrust force is equal to the drag force, the object will maintain a constant velocity (assuming no other forces are acting on it). This state is known as dynamic equilibrium, where the forces are balanced and there is no acceleration.
What happens to an object when a force acts on it over time?
If there is no counter-force (such as friction), in other words, if there is a NON-ZERO NET FORCE, the object will accelerate. That is to say, its velocity will change.
When a particle move in a circle then angle between linear velocity and angular velocity?
The angle between the linear velocity and angular velocity of a particle moving in a circle is typically 90 degrees. This means that they are perpendicular to each other.
Is distance time and force velocity quantities?
Distance and time are quantities that are independent of each other and are fundamental in physics. Force and velocity, on the other hand, are related quantities where force is the product of mass and acceleration, and velocity is the rate of change of displacement.
Is the net force acting on a body is zero will the velocity be zero?
Not necessarily. If the net force acting on a body is zero, the body's velocity will remain constant (assuming no other forces act on it to change its velocity), but it doesn't mean the velocity will be zero. If the initial velocity is zero, then the velocity will remain zero if the net force is zero.
The largest velocity reached by a falling object is its what?
The largest velocity reached by a falling object is its terminal velocity. Terminal velocity is the constant maximum velocity reached by an object when the drag force is equal in magnitude and opposite in direction to the gravitational force acting on the object.
Which way does normal force act?
The normal force acts perpendicular to the surface that an object is in contact with. It is a reaction force that arises when two objects are in contact and prevents them from passing through each other.
Which of these would change the direction of an object but not affect the object's speed?
Changing an object's direction without affecting speed requires a force that acts perpendicular to the object's velocity, such as centripetal force or gravitational force. This force causes the object to change direction while continuing at a constant speed. Other forces acting parallel to the object's velocity can change its speed as well as its direction.
