An airplane flying at a velocity of 610 m/s lands and comes to a complete stop

over a 53 second period.

a) Did this airplane speed up or slow down? Explain your reasoning.

b) Did this airplane accelerate or decelerate? Explain your reasoning.

c) Should your answer be positive or negative? Explain your reasoning.

d) Calculate the acceleration.

A) The airplane slowed down. It states that the plane lands and come to a complete stop over a 53 second period.

B) It decelerates. The speed doesn't increase. It slows down.

C) The answer should be positive. Although the deceleration is slowing down the plane, it's not going at a negative speed.

D) The answer is 11.5m/s. I divided the velocity by the amount of seconds it takes to make a complete stop.