​A spaceship leaves the space station with an acceleration of 15 ft/s2.

A spaceship leaves the space station with an acceleration of 15 ft/s2. After 3 minutes the engines turn off and the acceleration is 0 ft/s2. What is the average velocity of the spaceship?
A) 81,100 ft/s
B) 1,350 ft/s
C) 243,000 ft/s
D) 2,700 ft/s

What is the gauge pressure of at a point that is 15 meters below the surface of water that has an atmospheric pressure of 14.7 PSIA?
A) 147,150 pa
B) 150,000 pa
C) 147,250 pa
D) 147,000 pa