The flea experiences an acceleration of 1,000 m/s².
Detailed explanation
This scenario involves motion with constant acceleration.
The relevant variables include the following.




We know the flea attains a takeoff velocity of 1.0 m/s over a distance of 0.50 mm.
The flea starts from rest, so the initial velocity is zero. The question asks for the flea's acceleration during leg extension.
The equation we apply is:

- a = acceleration (m/s²)
- u = initial speed = 0 m/s
- v = takeoff velocity = 1.0 m/s
- d = displacement = 0.50 mm
First, convert 0.50 mm to meters: 
Solution steps:
Rearrange the formula to isolate acceleration (a).




Insert the given values into the rearranged equation.




This yields the flea's acceleration as 1,000 m/s².
Additional resources
- Scientific notation: brainly.com/question/7263463
- Determining substance mass: brainly.com/question/4053884
- Conversion into cubic units: brainly.com/question/1446243
Keywords: flea, jumping, leg extension, takeoff velocity, initial speed, displacement, acceleration, constant acceleration, unit conversion