(A 74 kg person stands on a scale inside an elevator, that is accelerating upward with a = 2. 3 m / s2. What does the scale read (normal force)? (Hint: g = 9. 8 m / s]

Aspaceship starting from a resting position accelerates at a constant rate of 9.8 meters per second per second. how far will the spaceship travel if its final speed is 1 percent the speed of light (300,000,000 m/s)? a. 3.1 × 106 m b. 2.94 × 108 m c. 7.8 × 1010 m d. 4.6 × 1013 m