Define and explain the differences between
a. Distance and displacement
b. Speed and velocity
Answers
Answer:
the total paths length between final and initial point is known as distance .
the shortest distance between final and initial point is know as displacement.
speed is the rate of change of motin , i.e. distance moved by an object in a specified time irrespective of direction.
velocity is speed with respect to direction.
Explanation:
Explanation:
a.) Distance; 1. distance distance is the length of the actual path travelled by a body in a given time.
2. distance travelled by a body is always positive.
3. distance is a scalar quantity.
distance travelled by a body is always greater or equal to its displacement in any direction.
Displacement; 1.displacement is the shortest distance between the initial and final position of the moving body is known as direction.
2. displacement of a body may be positive, zero or negative.
3. displacement is a vector quantity.
4. displacement of a body is always less than or equal to the distance travelled by the body.
B.) Speed; 1. speed is the distance travelled by a body in unit time
2. speed is a scalar quantity
3.Speed tells how fast our body is moving.
4. speed is always positive
Velocity; 1. velocity is the distance travelled by a body in a particular direction in unit time.
2. velocity is a vector quantity
3.velocity tell how fast a body is moving along a particular direction.
4.the magnitude of velocity of a body is positive but specification of direction is a must.