Question

4- The numerical rates of average speed to average velocity is औसत चाल एवम औसत वेग का संख्यात्मक अनुपात है है a- Always equal to one b- Always less than one C- Always greatest than one. D- equal or more than one
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Answer 1

Answer:

equal or more than one

thank you

Answer 2

The number value of the ratio of average speed to average velocity is..

a. Always equal to one

b. Always less than one

c. Always greatest than one

d. equal or more than one

Answer : option (d) equal or more than one

explanation :

• Average speed is the ratio of total distance covered by body to the total time taken by it.
• Average velocity is the ratio of total displacement covered by body to the total time taken by it.

there are simply two types of motion.

1. linear or straight line motion
2. non linear motion (motion on curve path)

case 1 : for straight line motion,

total distance covered by body = total displacement covered by body [in a specific time.]

so , average speed = average velocity

∴ average speed/average velocity = 1 ...(1)

case 2 : for non linear motion,

total distance covered by body > total displacement covered by body

so, average speed > average velocity

∴ average speed/average velocity > 1 ...(2)

from equations (1) and (2) we get,

average speed/average velocity ≥ 1

Therefore the correct option (d) equal or more than one.