Speed and velocity both represent a way to measure the change in position of an object relative to time. In fact, for a straight line motion, the speed and velocity of an object are the same (since distance and displacement will be the same). Speed and velocity are measured in the same units: meters per second or m/s.Click to see full answer. Similarly one may ask, what are the similarities and differences between speed velocity and acceleration?Velocity is the rate of change of position with respect to time, whereas acceleration is the rate of change of velocity. Both are vector quantities (and so also have a specified direction), but the units of velocity are meters per second while the units of acceleration are meters per second squared.Also, why is speed not considered a velocity? This is due to the fact that speed is a scalar quantity and not a vector. Speed also only shows the amount of distance being covered in a certain time, and distance is never negative. Velocity however IS a vector quantity thus it can denote a positive or negative direction on a given plane. Similarly one may ask, what do speed acceleration and velocity have in common? We also learned that speed is a scalar quantity, which is one that requires only a magnitude, while velocity is a vector quantity, which is one that requires a magnitude (also mph) and a direction. The rate of change for velocity is acceleration, which is measured in displacement over time over time (e.g., m / s^2).How is the velocity of a car different from the speed?The reason is simple. Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement. For example, 50 km/hr (31 mph) describes the speed at which a car is traveling along a road, while 50 km/hr west describes the velocity at which it is traveling.
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