Multiple choice

A certain microscopic particle moves a distance of $4.00\times 10^{-3}$ meters during a time of $5.00\times 10^{-5}$ seconds. What is the particle's average speed?

  1. $1.25 m/s$
  2. $8.00 m/s$
  3. $80.0 m/s$
  4. $125 m/s$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Speed = Distance / Time. Speed = (4.00 * 10^-3) / (5.00 * 10^-5) = (4/5) * 10^2 = 0.8 * 100 = 80.0 m/s.

AI explanation

Using the formula for average speed, Average Speed = Total Distance / Total Time. Substituting the given values gives 4.00 * 10^-3 m / 5.00 * 10^-5 s. This simplifies to 0.8 * 10^2 m/s, which equals 80.0 m/s.

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