4.Ball A is dropped from the top of a building.One second later, ball B is dropped from the same building. Neglect air resistance.As time progresses, the difference in their speeds 2

5.The captain orders his starship to accelerate from rest at a rate of "1g" (1g= 9.8 m/sHow many days does it take the starship to reach 10% the speed of light? (Light travels at 3.0 × 108 m/s.) ). A)35B) 70C) 172D) 365 6.A car is traveling due west at 20.0 m/s. If the acceleration of the car is a constant 1.0 m/s 2

due west, find the velocity of the car after 3.00 s.

7.A ball is thrown directly downward with an initial speed of 10.0 m/s from a height of50.0 m. How much time does it take to reach the ground?