Malik decides to test drive a new Maserati. While traveling with 20 points an initial velocity of 50 m/s, he suddenly speeds up to a velocity of 112 m/s
in 3 seconds. What is the Maserati's acceleration during the 3 second
time interval? Do calculation either by paper or other means, then upload
image (MUST SHOW WORK TO RECIEVE CREDIT).

Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?