Rates of Change - Is this answer correct?

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SUMMARY

The discussion centers on calculating the time it takes for a droplet of oil, with a radius increasing at a constant rate of 0.5 m/s, to reach the sides of a circular container with a radius of 50 m. The formula used is T = R/r, where T is time, R is the radius of the container, and r is the radius of the droplet. The correct calculation yields a time of 100 seconds for the droplet to reach the container's edge. The conversation also highlights a humorous exchange regarding the participant's self-identified lack of mathematical skills despite successfully performing calculations.

PREREQUISITES
  • Understanding of basic calculus concepts, particularly rates of change.
  • Familiarity with the formula for time in relation to distance and speed.
  • Knowledge of units of measurement, specifically meters and seconds.
  • Basic problem-solving skills in physics or mathematics.
NEXT STEPS
  • Study the concept of rates of change in calculus.
  • Learn how to apply the formula T = R/r in different contexts.
  • Explore real-world applications of circular motion and growth rates.
  • Practice solving similar problems involving time, distance, and speed.
USEFUL FOR

This discussion is beneficial for students in physics or mathematics, educators teaching rates of change, and anyone interested in applying mathematical concepts to real-world scenarios.

studentxlol
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Homework Statement



A droplet of oil is placed at the bottom of a circular container of radius(R)= 50m so that it is in the centre. If the radius (r) of the droplet is increasing at a constant rate of 0.5ms^-1. How long will it take for the droplet to reach the sides of the container i.e.when R=r.

Homework Equations



T=x/y=R/r where T=time, x=radius of container, y=radius of droplet.

The Attempt at a Solution



t=50/0.5=100s?

I don't do maths so I thought maybe you guys could help.

Thanks a lot.
 
Physics news on Phys.org
If you walk a half a meter per second how far will you go in 1, 10, and 100 seconds?

.5m, 5m, 50m ?

You don't do math, you just did math!
 

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