Question

calculating speed
use the data table on the left to complete the calculations.
what is the elapsed time for trial b?

s
what is the average speed for trial b?

m/s

trial a
distance traveled(m)
4.0
time(initial) (s)
2.0
time(final) (s)
3.5
elapsed time (s)
1.5
average speed (m/s)
2.7
trial b
distance traveled(m)
4.0
time(initial) (s)
1.5
time(final) (s)
4.5
elapsed time (s)

average speed (m/s)

Explanation:

Step1: Calculate elapsed time for Trial B

Elapsed time = Time (final) - Time (initial)
$$4.5 - 1.5$$

Step2: Calculate average speed for Trial B

Average speed = Distance traveled / Elapsed time
$$\frac{4.0}{3.0}$$

Answer:

Elapsed time for Trial B: $3.0$ s; Average speed for Trial B: $\frac{4}{3}\approx1.3$ m/s