Question

$\because$ A finch rides on the back of a Galapagos tortoise, which walks at the stately pace of 0.060 $\mathrm{m} / \mathrm{s}$ . After 1.5 minutes the finch tires of the tortoise's slow pace, and takes flight in the same direction for another 1.5 minutes at 11 $\mathrm{m} / \mathrm{s} .$ What was the average speed of the finch for this 3.0 -minute interval?

Name: Problem 15, Chapter 2: Physics
Uploaded: 2020-02-01T09:48:40-08:00
Duration: 7 min 34 s
Channel: Mohammad Amin
Description: ∵A finch rides on the back of a Galapagos tortoise, which walks at the stately pace of 0.060 m / s . After 1.5 minutes the finch tires of the tortoise's slow pace, and takes flight in the same direction for another 1.5 minutes at 11 m / s . What was the average speed of the finch for this 3.0 -minute interval?

   $\because$ A finch rides on the back of a Galapagos tortoise, which walks
at the stately pace of 0.060 $\mathrm{m} / \mathrm{s}$ . After 1.5 minutes the finch tires of
the tortoise's slow pace, and takes flight in the same direction for
another 1.5 minutes at 11 $\mathrm{m} / \mathrm{s} .$ What was the average speed of the
finch for this 3.0 -minute interval?

Physics

James S. Walker 5th Edition

Chapter 2, Problem 15

Instant Answer

Solved by Expert Mohammad Amin

02/01/2020

Step 1

The distance covered by the finch while riding on the tortoise (d1) can be calculated using the formula: \[d1 = v1 \times t1\] where $v1 = 0.060 \, m/s$ is the speed of the tortoise and $t1 = 90 \, s$ is the time the finch was riding on the tortoise. Show more…

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$\because$ A finch rides on the back of a Galapagos tortoise, which walks at the stately pace of 0.060 $\mathrm{m} / \mathrm{s}$ . After 1.5 minutes the finch tires of the tortoise's slow pace, and takes flight in the same direction for another 1.5 minutes at 11 $\mathrm{m} / \mathrm{s} .$ What was the average speed of the finch for this 3.0 -minute interval?

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Key Concepts

Time Conversion

Time conversion is crucial when the units of time in the problem are not in the standard unit used for speed calculations. Converting minutes to seconds ensures that the units are consistent and the calculations for distance and speed are accurate.

Distance Calculation

Calculating distance in each segment requires multiplying the constant speed by the corresponding time interval. This method assumes uniform motion over the interval and is essential when dealing with piecewise or segmented motion.

Average Speed

Average speed is defined as the total distance traveled divided by the total time taken. In problems involving multiple segments with different speeds, one must compute the distance covered in each segment and then divide the sum of these distances by the overall time.

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