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When you say that a race car travels north at 100km per hour are you talking about velocity?
Yes. Velocity is a vector and therefore requires magnitude and direction: Magnitude: 100 kph Direction: North
One car travels due to east at 40km per h and a second car travels north at 40km per h are their velocities equal?
No. "Velocity" includes a magnitude and a direction. If any of the two are different, then the velocities are also different.
What is the velocity of a bicycle if it travels 1 kilometer west in 4.1 minutes?
14.634 kilometers per hour.
How when something travels in a circle its always accelerating?
When an object travels in a circle, it is constantly changing direction, which means its velocity is also changing, even if its speed remains constant. Acceleration is defined as the rate of change of velocity, and since velocity includes both speed and direction, any change in direction constitutes acceleration. This continuous change in direction toward the center of the circle is what is known as centripetal acceleration. Therefore, an object in circular motion is always accelerating due to this constant change in direction.
What is distance divied by time?
Distance divided by time has the dimensions of speed (magnitude of velocity). The (distance an object travels) divided by (the time it takes to travel that distance) is a definition for the object's average speed.
What measures speed and direction an object travels?
Velocity measures both speed and direction that an object travels. The magnitude of velocity represents the speed of the object, while the direction of velocity indicates the direction in which the object is moving.
When you say that a race car travels north at 100km per hour are you talking about velocity?
Yes. Velocity is a vector and therefore requires magnitude and direction: Magnitude: 100 kph Direction: North
What does velocity tell you about a moving object?
Velocity communicates both the speed and direction of a moving object. It provides information on how fast the object is moving as well as the path it's taking. Additionally, velocity is a vector quantity, meaning it includes both magnitude and 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.
When can you say that there is acceleration?
Acceleration occurs when there is a change in velocity, either in magnitude or direction, over time. Mathematically, acceleration is the rate of change of velocity. So, if an object speeds up, slows down, or changes direction, it is experiencing acceleration.
What is the plane's velocity if it travels 100 km in 90 minutes?
The definition of velocity, or at least speed, is distance/(time at speed), in this instance 10/9 km/min. (In advanced mathematics, "velocity" is a vector quantity, with both a magnitude and a direction. In that instance, a direction would also be needed but was not stated in the problem.)
Why velocity is not constant if satellite travels with constant spped at a fixed elevatiopn?
Speed is a scalar quantity meaning it has only magnitude. Velocity is a vector meaning it has magnitude and direction. Whilst the satellite's speed is constant its direction is constantly changing. If its direction didn't change it would fly off in a straight line. Since its direction is changing, the velocity must be changing. And also since the velocity is changing, the satellite is also accelerating (towards the centre of the earth).
One car travels due to east at 40km per h and a second car travels north at 40km per h are their velocities equal?
No. "Velocity" includes a magnitude and a direction. If any of the two are different, then the velocities are also different.
Does change in the velocity of an object always indicate a change in speed?
No, a change in velocity can also be due to a change in direction even if the speed remains constant. Velocity is a vector quantity that includes both speed and direction, so changes in either component can result in a change in velocity.
Is the average speed equal to the magnitude of the average velocity justify your answer?
Yes usually and no rarely, velocity is defined as a vector, having both a direction and a magnitude (which is speed in the case of velocity). For instance 100 mph (speed) east (0o) (direction). In this form it is easy to see that the magnitude is 100 mph but mathematically to determine the magnitude of a vector you would divide the vector by its direction. 100 mph 0o / 0o = 100 mph Average speed and average velocity share the same relationship as instantaneous speed and instantaneous velocity so divide out the average direction from your average velocity to determine your average speed. If this is over a time period and you know the beginning and ending places in space your averages will simply be the difference from the starting to the ending places. So yes so long as you define speed to actually be the magnitude of the vector. However, if speed is taken without direction over time it may become something different. If an object travels along a vector with a negative magnitude its speed will not be negative but its vector magnitude will. Ex: A car travelling in reverse still has a positive speed but a compass will show it to be heading in the opposite direction of travel, a negative vector value...
Can two object's have same speed but different velocity?
=== === Since momentum is a vector and not a scalar quantity, to have the same momentum, they must have the same direction. Remember, vectors have magnitude and direction. Speed is the magnitude part of velocity. Since momentum is the product of mass (a scalar) and velocity (a vector) if two objects are moving in different directions, even if they have the same mass and speed, their momentums are different.
What is the metric unit that a wave's velocity is measued in?
The speed of anything is measured in metres per second. The difference between speed and velocity is that velocity is a vector, that is it has direction and well as magnitude. So velocity would be measured in metres per second in a certain direction.
