Suppose that the acceleration of a model rocket is proportional to the difference between 100 ft/sec and the rocket's velocity. If it is initially at rest and its initial acceleration is 50 ft/sec2, how long will it take to accelerate to 80 ft/s?
The Attempt at a Solution
I've tried to solve like this.
Vi=0 a=50ft/s^2 Vf=80ft/s
Sorry but that's all I know. I'm new to this topic. I hope you can guide me. Thank you so much.