I attempted these and couldn't get it please help.

Estimate the Olympic swimming pool problem: An Olympic swimming pool is roughly 45 m long and 25 m wide. How long will it take to ll such a pool with an ordinary garden hose? Review A motorcycle is following a car that is traveling at constant speed on a straight highway. Initially, the car and the motorcycle are both traveling at the same Part B speed of 19.0 m/s , and the distance between them is 53.0 m . After t1 = 4.00 s , the motorcycle starts to accelerate at a rate of 4.00 m/s2 . The motorcycle catches up with the car at some time t2. How long does it take from the moment when the motorcycle starts to accelerate until it catches up with the car? In other words, find t2 - t1. Express the time numerically in seconds using three significant figures. View Available Hint(s) IVO AEd ? t2 - t1 = 2.25 Submit Previous Answers X Incorrect; Try Again; 2 attempts remaining Part C How far does the motorcycle travel from the moment it starts to accelerate (at time t1 ) until it catches up with the car (at time t2 )? Should you need to use an answer from a previous part, make sure you use the unrounded value. Figure