Its aerodynamics and weight play major roles, but not the only factors.
Velocity gives both speed and direction of an object. While speed is a scalar quantity, velocity is a vector quantity and require direction or bearing in order to be valid.
It gives you the speed. (not the velocity)
All colors of light travel with the same speed.
Velocity
Kinetic energy is defined as 1/2mass times velocity^2 so either mass or velocity. Since velocity is squared it would be the main contributor. Ot sinply put because kinetic energy is the "energy of motion" velocity or speed would be the greatest contributor.
Horsepower and aerodynamics
Velocity gives both speed and direction of an object. While speed is a scalar quantity, velocity is a vector quantity and require direction or bearing in order to be valid.
It gives you the speed. (not the velocity)
They are both accurate but velocity gives more information as it is speed with a direction
All colors of light travel with the same speed.
Velocity
Velocity has a magnitude which is it's speed, but speed does not have a direction like velocity. Velocity and speed both have a speed. The direction is designated by a vector. The speed of light is a speed it is a scalar, a velocity will be denoted by vector elements e.g V = IVx + JVy + KVz or V 1R where 1V is the unit direction Radial and V is the scalar speed. Some people think the + or - sign gives direction toward or from the origin. That is true but + or - does not make the quantity a vector.
Speed gives you information about how fast something is going (it is scalar), on the other hand velocity is a vector and gives you directional information also, for example if you drive 50 kmph for a few hours from point A to a point B, and return to point A, your velocity is zero since the vector sums are zero
Kinetic energy is defined as 1/2mass times velocity^2 so either mass or velocity. Since velocity is squared it would be the main contributor. Ot sinply put because kinetic energy is the "energy of motion" velocity or speed would be the greatest contributor.
A vector is used to represent direction and magnitude of speed. Velocity is the speed of an object and a specification of its direction of motion. Speed describes only how fast an object is moving, whereas velocity gives both how fast and in what direction the object is moving. Therefore a vector can be used to represent a velocity. The term "resultant velocity" implies a change in velocity which can be determined using vector analysis.
Kinetic energy is defined as 1/2mass times velocity^2 so either mass or velocity. Since velocity is squared it would be the main contributor. Ot sinply put because kinetic energy is the "energy of motion" velocity or speed would be the greatest contributor.
velocity is speed with direction; velocity is a vector and speed is a scalar