1. Tardigrade
  2. Question
  3. Physics
  4. Assertion: Drift speed vd is the average speed between two successive collisions. Reason: If Δ l is the average distance moved between two collision and Δ t is the corresponding time, then vd= displaystyle lim Δ t arrow 0 (Δ ℓ/Δ t).

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Q. Assertion : Drift speed $v_d$ is the average speed between two successive collisions.
Reason : If $\Delta l$ is the average distance moved between two collision and $\Delta t$ is the corresponding time, then $v_d=\displaystyle\lim _{\Delta t \rightarrow 0} \frac{\Delta \ell}{\Delta t}$.

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Solution:

Drift speed is the average speed between two successive collision.