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An unbalanced force can cause the marble to start moving, stop moving, change its speed or change its direction.
speedIn physics:If the direction doesn't matter, the word "speed" is used.If the direction DOES matter, the word "velocity" is used.
Yes, that's a firm. Net force is needed in order to change the speed or direction of moving matter. Uh huh.
Speed is a scalar, velocity is a vector. That is to say, when you talk about "speed", the direction doesn't matter; when you talk about "velocity", it does. A velocity is only completely specified if you know the magnitude AND the direction.
Speed is a scalar quantity (direction does not matter) and velocity is a vector quantity) ie velocity means speed in a specific direction. If you are changing direction (turning) in a car, your speed is the same, while your velocity changes.
Downhill Speed - 2004 was released on: USA: 18 December 2004 (Tahoe Adventure Film Festival)
The cast of Downhill Speed - 2004 includes: Orlando Martinez as himself Johnny Waddell as himself
depends, if that was the constant speed at all times uphill and downhill, and the times are both the same. then the average speed would be 15mph
Increase
This can involve changing the shape of matter, or changing the speed or direction of an object.
The amount of speed in a given direction is the 'component' of speed in that direction. The total amount of speed AND the direction of the total speed is the 'velocity' of the moving object.
A marble traveling at 3.0m/s starts to acceleration at 4.5m/s over a distance of 25m. what is the final speed of the marble?