An antelope is at a distance of 20.0 m from a converging lens of focal length 24.0 cm. The lens forms an image of the animal. (a) If the antelope runs away from the lens at a speed of 4.30 m/s, how fast does the image move? mm/s
Added by Matthew W.
Step 1
We can use the lens formula: 1/f = 1/v - 1/u where f is the focal length, v is the image distance, and u is the object distance. We can rearrange this to solve for v: 1/v = 1/f + 1/u Substituting the given values (remembering to convert the focal length to Show more…
Show all steps
Your feedback will help us improve your experience
Suman K and 69 other Physics 101 Mechanics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
An antelope is at a distance of 20.0 $\mathrm{m}$ from a converging lens of focal length $30.0 \mathrm{cm} .$ The lens forms an image of the animal. If the antelope runs away from the lens at a speed of 5.00 $\mathrm{m} / \mathrm{s}$ , how fast does the image move? Does the image move toward or away from the lens?
A wildlife photographer with a 240-mm focal-length telephoto lens on his camera is taking a picture of a rhinoceros that is 120 m away. Suddenly, the rhino starts charging straight toward the photographer at a speed of 5.0 m/s. a) What is the speed, in m/s, of the image of the rhinoceros? b) Is the image moving toward or away from the lens?
Timothy J.
If you run away from a plane mirror at $2.40 \mathrm{~m} / \mathrm{s},$ at what speed does your image move away from you?
Recommended Textbooks
University Physics with Modern Physics
Physics: Principles with Applications
Fundamentals of Physics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD