What does velocity relative to the ground mean?
The velocity of the object measured relative to the ground is called the ground speed. Again, this is a vector quantity. Airspeed is the vector difference between the ground speed and the wind speed. On a perfectly still day, the airspeed is equal to the ground speed.
How do you calculate ground speed when flying?
Ground speed can be determined by the vector sum of the aircraft’s true airspeed and the current wind speed and direction; a headwind subtracts from the ground speed, while a tailwind adds to it.
What’s the difference between airspeed and ground speed?
Airspeed is the vector difference between the ground speed and the wind speed. On a perfectly still day, the airspeed is equal to the ground speed. But if the wind is blowing in the same direction that the aircraft is moving, the airspeed will be less than the ground speed.
How far will an aircraft travel in 7.5 minutes with a ground speed of 114 knots?
14.25 nautical miles
How fast am I moving relative to my chair?
As you read this in your chair, how fast are you moving relative to the chair? Relative to the sun? Relative to the chair your speed is zero.
What exactly is meant by a freely falling object?
What exactly is meant by a “freely falling” object? An object in free fall falls under gravity alone with no friction. The acceleration of free fall is about 10 m/s2.
When a ballplayer throws a ball straight up by how much does the speed of the ball decrease each second while ascending in the absence of air resistance by how much does it increase each second while descending how much time is required for rising compared to falling?
3 Answers By Expert Tutors. In the absence of air resistance , a ball player tosses a ball up straight up, how much does the speed of the ball decrease while ascending, increase while ascending, > The ball’s speed decreases to zero while ascending; it doesn’t increase while ascending.
How does the distance traveled by the ball in the second half second compare with the distance traveled by the ball in the first half second?
The ball had constant acceleration, so it gained the same speed every second. How does the distance traveled by the ball in the second half second compare with the distance traveled by the ball in the first half second? It increases.
Will a marble rolling down an incline travel a shorter or greater distance if you raise the height of the incline?
Answer: The marble will travel faster when the height of the inclined plane was raised. Explanation: Therefore, raising the inclined plane increases the speed of the marble rolling down the inclined plane, and the greater distance it will travel.
Can pure rolling happen without friction?
In other words, a rough surface is a requirement for pure rolling (or rolling without slipping/sliding) to be possible in such scenario. Frictional force is not zero in a rolling motion An object is able to roll only because friction prevents the bottom part from slipping.