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Julie walked to her friend's house to spend the afternoon She walked at 4 mph When she went home she ran at 6 mph so she wouldn't be late What is true about her average speed and average velocity?
Her average speed for the entire trip would be between 4 mph and 6 mph. Average velocity would consider both speed and direction, so it would take into account any changes in direction during the trip.
Can terminal velocity be changed?
Terminal velocity is determined by several factors including an object's shape, size, and weight, as well as external forces like air resistance. Terminal velocity can be altered by changing these factors, such as by increasing or decreasing an object's weight or by adjusting its shape to reduce air resistance.
When is the velocity vector of a particle tangent to the path of the particle?
The velocity vector of a particle is tangent to the path of the particle at any point. This is because velocity is a vector that points in the direction of motion of the particle at that particular instant.
Is momentum a vector?
Momentum is a vector quantity because the definition of momentum is that it is an object's mass multiplied by velocity. Velocity is a vector quantity that has direction and the mass is scalar. When you multiply a vector by a scalar, it will result in a vector quantity.
What is the relationship between the velocity of an object and the time it takes to travel a certain distance?
The relationship between the velocity of an object and the time it takes to travel a certain distance is that the higher the velocity, the shorter the time it takes to cover the distance. This is because velocity is the speed of an object in a specific direction, so a higher velocity means the object is moving faster and can cover the distance in less time.
What is the direction of instantaneous acceleration?
The direction of instantaneous acceleration is in the direction of the change in velocity at that moment. If the velocity is increasing, the acceleration is in the same direction as the velocity. If the velocity is decreasing, the acceleration is in the opposite direction of the velocity.
How is velocity same from instantaneous speed?
Velocity is a vector quantity that includes both speed and direction, while instantaneous speed is the magnitude of velocity at a specific moment in time without considering direction. In other words, velocity accounts for the object's motion in a specific direction, whereas instantaneous speed is the rate at which an object is moving at a given instant, regardless of direction.
What is the difference between instantaneous velocity and instantaneous speed?
Instantaneous velocity is a vector quantity that includes both the speed and direction of an object at a specific moment. Instantaneous speed, on the other hand, is a scalar quantity representing only the magnitude of the velocity without regard to direction.
If the instantaneous velocity of an object remains constand can its instantaneous speed change?
No, if the instantaneous velocity of an object remains constant, then its instantaneous speed cannot change. Velocity is a vector quantity that includes both speed and direction. If the velocity is constant, it means both the speed and direction are constant.
What is the formula of velocity?
There are several definitions. not just one. Average velocity in a direction = Average displacement (distance) in that direction/time Instantaneous velocity in a direction = derivative of displacement in that direction with respect to time Average velocity in a direction = Initial velocity in that direction + Average acceleration in that direction * time Instantaneous velocity in a direction = Definite integral of acceleration in that direction with respect to time, with initial velocity at t = 0 Then there are others in which time is eliminated.
Is instantaneous velocity a vector or a scalar?
Instantaneous velocity is a vector quantity because it has both magnitude and direction. It describes the rate at which an object changes its position in a specific direction at a given moment in time.
What are the difference of instantaneous velocity and average velocity?
Average velocity in a direction is calculated as the displacement in that direction divided by the total time taken. As the time interval is reduced, the displacement over that period also reduces and the limiting value of that ratio is the instantaneous velocity.
At a given moment in time instantaneous speed can be thought of as the magnitude of instantaneous .?
velocity
At a given moment in time instantaneous speed can be thought of as the magnitude of instantaneous what?
Instantaneous speed can be thought of as the magnitude of instantaneous velocity. Velocity is a vector quantity that includes both speed and direction, while speed is a scalar quantity that only indicates how fast an object is moving.
Is instantaneous velocity a vector quantity?
"Velocity" is a vector quantity. This also applies to instantaneous velocity. If you want the scalar quantity, you talk about "speed".
At what point does the ball have an instantaneous velocity of zero?
The ball has an instantaneous velocity of zero at the highest point of its trajectory. This is because at that point, the ball changes direction from going up to coming down, causing its velocity to momentarily be zero before increasing in the opposite direction.
What is instantaneus velocity?
Instantaneous velocity is the velocity of an object at a specific instant in time. It represents the object's speed and direction at that moment. It is calculated as the limit of the average velocity as the time interval approaches zero.
