what are the quantity needed in computing speed and velocity?

Answer 1

velocity = (traveled distance) / (time it took)

speed is the same as velocity

Answer 2

Speed

Any object in motion has speed—a flying plane, a moving train, and a person walking down the street all have speed. In physics, speed is the rate of motion of an object and is represented by the letter S. Speed or rate of motion is the ratio of distance (d) to time (t) or a measure of length per unit of time.

The formula for determining speed or rate is:

S = d/t

For example, if you drive your car 360 miles in 6 hours, you can compute the rate by substituting the values for distance and time into the formula:

S = 360 mi / 6 hrs

Since rate is expressed as distance per unit time, you must change 6 hours to a single unit or 1 hour; therefore:

S = 360 mi / 6 hrs = 60 mi / 1 hr

The common expression for this is 60 miles per hour, or 60 mph.

We use many different units to express speed; for example, nautical miles per hour (knots), feet per second (fps), and meters per second (ms-1) are often used.

Velocity

Velocity is another expression of speed, but the two terms are not interchangeable. Velocity is speed in a specific direction, but speed itself does not account for direction. For example, an aircraft flying 90° at 350 knots (kts) has a direction of 90° and a speed of 350 knots; its velocity is 350 knots toward 90°. Velocity is vector quantity because it has both magnitude and direction.

Answer 3

The more the better!
Seriously though, it depends on what you want to do. If you just want to do some basic word processing etc. you can use a fairly slow computer. If you want to play a blockbusting game that was released yesterday, you'll need more power.

Answer 4

For speed, distance and time taken to move that distance are req'ed. For velocity, direction in which body is moving is also req'ed,

Answer 5

hi there:
tocompute velosity and spead u need time and distance nothiing else
but u know there is differnce between speed and velosity
where velosity has a direction vector speed dosnt