Speed is a scalar quantity, defined as the ratio between the distance covered and the time taken:

*

where

d is the distance covered

t is the time taken

Speed is measured in meters/second (m/s).

You are watching: Is the distance traveled during a specific unit of time.

It should be noted that speed is different from velocity: in fact, velocity is a vector quantity, whose magnitude is defined as

*

where d is the displacement (not the distance), and it also has a direction, while speed does not have it.



A person could jump farther on Mars than on Venus, mainly because Mars has much less mass than Venus has.

londonchinatown.org and Explanation:

A phased array can be referred to the array that is scanned electronically or an array of antenna creating a radio wave beam and is computer controlled and can be directed in different pathways without the movement of antennas.

When the beam created by phrased array is incident on an object, it is reflected and an echo that can be detected, returns to the antenna.

The object bearing is provided by the direction of return of the echo to the antenna and the distance of the object is indicated by the lag between the pulse transmission and its echo.

See more: " May Your First Child Be A Masculine Child Be A Masculine Child



a fan acquires a speed of 180 rpm in 4s, starting from rest. calculate the speed of the fan at the end of the 5th second startin

londonchinatown.org:

225 rpm

Explanation:

The angular acceleration of the fan is given by:

*

where

*
is the final angular speed

*
is the initial angular speed

*
is the time interval

For the fan in this problem,

*

Substituting,

*

Now we can find the angular speed of the fan at the end of the 5th second, so after t = 5 s. It is given by:

*

where

*

Substituting,

*



londonchinatown.org: Measures. Explanation: Momentum measures the "motion content" of an object, and is based on the product of an object"s mass and velocity.

48 years, 1912-1960, July 4, the 50-star flag makes its debut in Philadelphia, Pennsylvania. A 50th star was added to the American flag in honor of Hawaii"s August 21, 1959 admission into the Union