Question

A particle moves from A to B for the first half of distance with a uniform speed v, and the next half of the distance with a uniform speed v. The average speed of the particle is​

Answer 1

Answer:

The average speed of the particle is v m/s

Average speed =v+v/2

=2v/2

=v m/s

Explanation:

Hope it helps

Answer 2

Answer:

first half= S, second half=S

time =distance/speed

T1=S/v1, T2=S/v2

Explanation:

average speed =total distance /total time

average speed= (S+S)/(T1+T2)

(putting value)

average speed=2S/(S/v1+S/v2)

(by solving this we get )

average speed=2.v1.v2/(v1+v2)

I think that the uniform speed at second time is u

hope it will help you

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