You are trying to head back on Mars, to do some more experiments. You have designed some extremely cheap pressure sensors that will provide information on the rate of change of pressure, but not much more. You are hoping the information will help with lander design and reliability. You are testing your dropsondes on the Earth before you send them all the way to Mars. Crash testing them, specifically. But since you do not have any other sensors on the dropsonde $($or money leftover...$)$ you have to rely on science!

The dropsonde and its little parachute are dropped from an aircraft. On its way down, the dropsonde reaches terminal velocity$$the aerodynamic forces from the parachute are equal to the weight, and there is no net acceleration. The dropsonde records a $45\%$ increase in pressure per minute. What is the terminal velocity, vT$?$