Question

a particle retards uniformly,it covers successive equal distances,the avg velocity in first part is 20,in third part is 12,what is its avg velocity in second part?????(the question is correct) ans: 241^1/2 +1
pls do try it

Answer 1

A particle retards uniformly, it covers successive equal distances, the avg velocity in first part is 20, in third part is 12, what is its avg velocity in second part?

Solution:

According to condition that a particle retards uniformly, the velocity in second part is as average from first and third parts:

$$V2 = (V1 + V3)/2$$ $$V2 = \frac{20 + 12}{2} = 16$$

Answer:

16