Question

The speed
The velocity
of a body is
the distance
travelled by
ample, if a car moves 70 km
norch in the first hour of in journey, 70 km west in the
Table Differences between
socoted hour and 70 km north-west in the third hour, it is
speed and velody
said to have a non-uniform velocity
Speed
Velocity
unequal distances in cqual intervals of time and also its
direction keeps on changing. For example, if a car moves
of a body is
70 km north in the first hout of its journey. 45 km west in the distance
the second hour and 56 km north-west in the third hour,
travelled by
it per unit per unit time
then it is said to have a non-uniform vclocity
in a given
direction.
ifference between speed and velocity
determine speed, you only need to know the total distance
It is a solas
It is vector
quantity
quantity
wered in a given time and do not need to know the
rection. However, to determine velocity; you do not need to
Speed teils Velocity
how fast an ashow on
now the total distance covered. You only need to know the
corect moves
and in har
range of position in time in a given direction (displacement
er unit time). The differences between speed and velocity are
obiect
iven in Table 2.1.
Check your progress
Fill in the blanks
is the ratio of the total distance travelled to the total time taken
2. The distance travelled by a body is a
quantity whereas its displacement is
a
quantity
3. If a person walks 10 m due south in 10 seconds, 10 m due cast in the next 10 seconds and
10 m due north in the next 10 seconds, then he has
velocity
4. If an object covers
distance
intervals of time along
a straight line, it is said to have a uniform motion
5
of a body is the distance travelled by it per unit time whereas its
is the distance traveled by it per unit time in a given direction,
2​

Answer 1

Answer:

Accelaration

Explanation: