15. 4 points SCalcET8 4.4.078. If an object with mass m is dropped from rest, one model for its speed v after t seconds, taking air resistance into account, is where g is the acceleration due to gravity and c is a positive constant describing air resistance. (a) Calculate limv. What is the meaning of this limit? O It is the speed the object reaches before it starts to slow down O It is the time it takes the object to reach its maximum speed O It is the speed the object approaches as time goes on. O It is the time it takes for the object to stop. (b) For fixed t, use l'Hospital's Rule to calculate lim v What can you conclude about the velocity of a falling object in a vacuum? OAn object falling in a vacuum will accelerate at a slower rate than an object not in a vacuum. O The heavier the object is the faster it will fall in a vacuum O The velocity of a falling object in a vacum is directly proportional to the amount of time it falls O The velocity of a falling object is proportional to its mass in a vacuum