1. The problem statement, all variables and given/known data 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. 2. Relevant equations T=x/y=R/r where T=time, x=radius of container, y=radius of droplet. 3. 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.