The net force on a boat causes it to accelerate at 1.55 m/s^2. The mass of the boat is 215 kg. The same net force causes another boat to accelerate at 0.125 m/s^2. (a) What is the mass of the second boat? (b) One of the boats is now loaded on the other, and the same net force is applied to this combined mass. What acceleration does it cause?
(a)____kg
(b)____m/s^2