Conceptual general physics help?

[gibson101]

I have some concept problems that I cannot seem to master. I have them narrowed down to what I think the answers are but I keep getting them wrong.
I'm supposed to choose all the statements that are false.

A motorcycle moved along a straight road at a constant speed. The magnitude of its acceleration was 0 m/s2. - true

A rabbit moved a total distance of 11 m and had a total displacement (magnitude) of 8 m. -false

It is observed that car's velocity and acceleration magnitudes are parallel. During this time, the car's speed increased by 4 mph. - true

An automobile is speeding up along a straight stretch of road. At one moment during this time it is observed that xcar = -27 mi, vcar,x = -16 mph, & acar,x = -9 mph/s. - have no clue?

The truck traveled a distance of -78 mi. - flase

A rock was thrown straight up into the air. At the peak, its acceleration was 9.8 m/s2 down.- false, at the peak it's acceleration would be 0?

An SUV was at rest for 10 s. During this time its acceleration (magnitude) was changing. - false, how could it be accelerating if it's at rest?

An airplane went from New York to Boston. During the trip its average speed was 67 mph and its average velocity (magnitude) was 51 mph. - false, speed is a scalar of velocity ( a vector), and a scalar cannot be greater than its vector, correct?

This is an online question (must choose all that are false to get it right), and this is what I think but it keeps saying I'm wrong.

 

[Uglybb]

A rock was thrown straight up into the air. At the peak, its acceleration was 9.8 m/s2 down.- false, at the peak it's acceleration would be 0?

Wrong that is true it's the force of gravity

To throw it up you had to overcome gravity so you threw it up with a force to overcome the downward pull of gravity which is a constant and unchanging 9.8m/s2 why else would the rock fall if there was no acceleration due to gravity.