Fill in the blanks.
a) Any investment is made with the hope that these assets will
b) Foreign trade results in
of markets across countries.
c) Rapid improvement in technology has stimulated
process
d) Removing barriers said by the government is known as
e) In the recent past, Globalization has seen rapid movements
and
between countries.
f) A tax on imports is a
(tariff barrier/ non tariff barrier)
Answers
Speed and Velocity
Introduction
Scalars and Vectors
Distance and Displacement
Speed and Velocity
Acceleration
Just as distance and displacement have distinctly different meanings (despite their similarities), so do speed and velocity. Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a short amount of time. Contrast this to a slow-moving object that has a low speed; it covers a relatively small amount of distance in the same amount of time. An object with no movement at all has a zero speed.
Velocity as a Vector Quantity
Velocity is a vector quantity that refers to "the rate at which an object changes its position." Imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. While this might result in a frenzy of activity, it would result in a zero velocity. Because the person always returns to the original position, the motion would never result in a change in position. Since velocity is defined as the rate at which the position changes, this motion results in zero velocity. If a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. Every step must go into moving that person further from where he or she started. For certain, the person should never change directions and begin to return to the starting position.