Question

(a) A goldfish is swimming at 1.20 cm/s toward the front wall of a rectangular aquarium. What is the apparent speed (in cm/s) of the fish measured by an observer looking in from outside the front wall of the tank?  

(b) What If? The fish is now gently transferred to a spherical bowl with a radius of curvature R = 30.0 cm. If it again swims at 1.20 cm/s along a radial line toward the outside of the bowl, what is the apparent speed (in cm/s) of the fish measured by an observer looking in from outside the front wall of the tank, when the fish is 3.20 cm from the wall?  

Answer 1