Physics

# What is the numerical ratio of velocity to speed an object?

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The size of velocity and the size of speed are the same number.

But velocity also has a direction and speed doesn't.

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## Related Questions Velocity describes the speed and direction of an object.velocityvelocity the velocity of an object is its speed and direction Because velocity has a direction but speed does not. A vector has both a numerical value and a direction but a speed has only a numerical value and therefore it can't be represented by a vector. Velocity is an object's Speed + Direction. For example, a cannon ball fired up at 45o to the ground may have a speed of 1000 ft/sec. However, its forward Velocity is:(1000 ft/sec) x (Sine 45o) = (1000 ft/sec) x (.707)= 707 ft/secSo, the ratio of the horizontal Velocity to the instantaneous Speed of the object is the SINE value of the angle of motion relative to the Horizontal axis.But you have to remember that there is a Vertical component of the object's Speed as well. In this case, the ratio is the COSINE 45o , which happens to be .707 as well. So the ball is going forward at 707 ft/sec, and upward at 707 ft/sec. at the same time. The speed and direction of an object is its velocity. The speed and direction of an object combine to give its velocity with the speed being equal to the magnitude of the velocity. the speed something moves in is velocity Velocity is the vector form of speed. It is the speed of an object in a specified direction.  acceleration is the increase of speed in a moving object. velocity is the speed and direction of a moving object. Velocity is the speed of an object. Consider an object turning in a circle at a constant speed. Because velocity is not just the value of speed, but also the direction in which the object is moving, the velocity would not be constant. When an object is not moving. (Velocity is speed)  The magnitude of average velocity of an object equal to its average speed if that object is moving with CONSTANT velocity. If the speed of an object is cited and its direction of motion is also cited, we have the velocity of the object. Velocity is speed plus a direction vector.  No, they are not the same! Velocity involves the speed and the direction of the moving object... No. Speed is the magnitude of the velocity. If either or both the speed and direction vary, the velocity is not constant.  Speed is the distance an object travels per unit of time and velocity describes the speed and direction of a moving object. Speed is distance by time and velocity is displacement by time. If an object is moving with speed distance can never be zero but displacement can. So we say velocity can be zero. Yes. An object moving in a straight line at constant speed has constant velocity. speed is how fast an object is moving, velocity is how fast an object is moving in a given direction. No, velocity is the instantaneous speed of an object, the rate of change would be the acceleration of the object.

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