Question

A fly moves along a straight line and has an initial velocity of 8.0 m/s. The fly accelerates at a constant weight and drinks at 24m/s at 40s and interval. What is the average velocity?

Answer 1

To calculate the average velocity of the fly, we need to determine the displacement and the total time taken.

Given: Initial velocity (u) = 8.0 m/s Final velocity (v) = 24 m/s Time interval (t) = 40 s

The average velocity (V_avg) can be calculated using the formula:

V_avg = (displacement) / (total time)

First, let's calculate the displacement (s) using the equation of motion:

s = (v + u) * t / 2

Substituting the given values:

s = (24 m/s + 8.0 m/s) * 40 s / 2 s = 32 m/s * 40 s / 2 s = 1280 m

Now, we can calculate the total time (T_total), which is the sum of the given time interval (t) and the time it takes to accelerate (40 s):

T_total = t + t T_total = 40 s + 40 s T_total = 80 s

Finally, we can calculate the average velocity (V_avg):

V_avg = s / T_total V_avg = 1280 m / 80 s V_avg = 16 m/s

Therefore, the average velocity of the fly is 16 m/s.