Question

An electron travels 1.92 m in 4.47 × 10−8 s.
How fast is it traveling?
Answer in units of m/s

Answer 1

1.92/(4.47*E-8) = ... [m/s]

Answer 2

You're seeking units of m/s and have been supplied meters and seconds so:
\[\frac{1.92m}{4.47*10^{-8}s}\]

Answer 3

Plugging in a calculator you get \[42953020.13 \frac{m}{s}\]
Odds are you need to supply this in scientific notation:
\[4.30*10^7\frac{m}{s}\]

Answer 4

Turner’s treadmill starts with a velocity of
−2.7 m/s and speeds up at regular intervals
during a half-hour workout.After 33 min, the
treadmill has a velocity of −7.1 m/s.
What is the average acceleration of the
treadmill during this period?
Answer in units of m/s2