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Do both cars have the same velocity if they are going in different directions at seventy miles per hour?
Wiki User
∙ 14y ago
No, they don't. Velocity is a vector - made up of both a magnitude (number), and a direction. If any of the two changes, the velocity is not the same.
If you are interested only in the magnitude, you talk about "speed", not "velocity".
Wiki User
∙ 14y ago
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What is a real life example of an opposite ray?
Darth Maul's double light saber because the rays from the light saber are going 2 different directions.
Do speed and velocity have same meaning?
No. It's confusing unless you're into physics or mathematics but velocity is a vector quantity with speed is one aspect. Velocity includes speed and the direction of motion. A car is going 60 miles per hour as speed. A car is going 60 MPH due north is velocity.
Is it possible for velocity to have a negative value?
Yes velocity is a vector that has both speed and direction. So if you are going 30 mph in one direction that may be positive, but if you are going in reverse that may be negative.
How is the initial velocity zero but the acceleration is not?
Going back to definitions, Velocity is change of distance with time; and acceleration is change in velocity with time. Initially, the velocity is zero, as is the acceleration, BUT the Force of Gravity attracts the falling mass, and causes velocity to appear. But the continued application of the Force of Gravity causes the velocity to increase. And as we know, increase in velocity is acceleration. [space for QED]
You are in a car going 70 kmh and another car passes you going in the opposite direction at 70 kmh. do both cars have the same velocity?
No. Velocity is a vector, so it has both a magnitude and a direction. If the velocity of your car was heading in the positive direction, then the other car is moving in the negative direction. The velocities are NOT the same!
How the velocity of an escalator that is going up different from the velocity of one that is going down at the same speed?
Speed is a scalar, velocity is a vector. Two objects moving at the same speed but in opposite directions will have opposite velocities. If the velocity of the elevator going up is v, the velocity of the elevator going down will be -v.
What does a diagram of two objects with the same speed but a different velocities look like?
The diagram you are asking for looks like two lines, with the same length, but pointing in two different directions. The difference in direction is what would show the different velocity. So imagine one line going down, one like going right, same length, but directions, so they would be different velocities.
What are things that come in groups of seventy?
Quorum of the seventy Seventy friends going to the mall Seventy hummingbirds A pile of seventy coins
Is velocity for waves different than speed?
Speed and velocity are never the same thing.Velocity means 'speed' AND the direction it's going.
Why can velocity be positive or negitave?
Velocity can be a positive or a negative because velocity is a vector, which means it is also affected by direction. This that if one car is going +10 m/s and another is travelling at -10 m/s, this means that they are travelling the same speed in opposite directions.
How do you know that two hot air balloons going in opposite directions near Albuquerque will not run into each other?
Because they move with wind currents (which can be different at different altitudes). If they are going in opposite directions, they cannot be at the same altitude. If they were at the same altitude, they would be subject to the same winds, so could not be going in opposite directions.
What is the difference between constant velocity and average velocity?
The average velocity is trying to find how fast the car is going at an average rate. However, constant velocity means that the car is going at an unchanged velocity. Say a car is going at 75 m/s and then changes to 50 m/s and then changes to 25 m/s in 30 minutes. The car is going at different velocities at different times. To find the average, you simply just add the 3 together, then divide by 3 giving you, 50 m/s In the 30 minutes, it's average velocity was 50 m/s However, for a car going at a constant velocity, it means that the velocity never changes. Say a car is going at a constant velocity for 30 minutes at 50 m/s. In those 30 minutes, the car will never change it's velocity and remain at 50 m/s. Constant means that it doesn't change.
Why does a compass point in different directions?
Its ovious why a compass points in different directions. For example, if your going north, the compass points north because your going that direction. Theres also a magnet concealed in the compass. How does the compass know what direction yoiur going. Earth it self is a magnet. When you head that direction, it will point
If an object has two velocities are going in opposite directions would the overall velocity of the object be positive or negative?
It's positive in the direction of the greater one, and negative in the direction of the smaller one.
What is speed and how is speed different from velocity?
Velocity is speed plus direction. If you say you are traveling at 54 miles per hour, you are giving your speed. If you say you are going north at 54 miles per hour, you are giving your velocity.
What are examples of velocity?
Take a train going west at 100 miles per hour and another train going south at the same speed. Their velocities are different because velocity is a vector quantity that gives both speed and direction. Since they are going in different directions they have different velocities.
What happens when light gets scattered?
It stops going only one way and starts going every which way.
